1995 es Corden, W. Max Corden, W. Max Una zona de libre comercio en el Hemisferio Occidental: posibles implicancias para América Latina En: La liberalización del comercio en el Hemisferio Occidental - Washington, DC : BID/CEPAL, 1995 - p. 13-40 2014-01-02T14:51:16Z hdl:11362/5692 S E R I E S ISSN 1564-4189 ENVIRONMENT AND DEVELOPMENT Climate change and reduction of CO2 emissions The role of developing countries in carbon trade markets Carlos Ludeña Carlos de Miguel Andres Schuschny 150 Climate change and reduction of CO2 emissions The role of developing countries in carbon trade markets Carlos Ludeña Carlos de Miguel Andres Schuschny This document was prepared by Carlos Ludeña, Carlos de Miguel and Andrés Schuschny, consultant and staff member, respectively, of the Sustainable Development and Human Settlements Division of ECLAC, within the framework of the activities of the project REDD and policies to favour a lower carbon economy (GER/12/001) and the Development Account of the United Nations. A first version of this paper was presented at the twelfth Annual Conference on Global Economic Analysis, Santiago, Chile, June 10-12, 2009 The authors would like to thank Terrie Walmsley, Jason Beckman, Alla Golub and Robert McDougall from the Center for Global Trade Analysis at Purdue University for providing access to the GTAP-E model and the most recent version of the database. The views expressed in this document, which has been reproduced without formal editing, are those of the authors and do not necessarily reflect the views of the Organization. United Nations publication ISSN 1564-4189 LC/L.3608 Copyright © United Nations, December 2012. All rights reserved. Printed in United Nations, Santiago, Chile. Applications for the right to reproduce this work are welcomed and should be sent to the Secretary of the Publications Board, United Nations Headquarters, New York, N.Y. 10017, U.S.A. Member States and their governmental institutions may reproduce this work without prior authorization, but are requested to mention the source and inform the United Nations of such reproduction. CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Index Abstract…………………………………………………………………..5 Introduction……………………………………………………………...7 I. The Kyoto Protocol......................................................................... 11 A. Economic modeling on climate change and emissions trading .............................................................. 13 B. The GTAP-E model.................................................................. 14 C. Economic data, CO2 emissions and parameters ....................... 17 D. Policy scenarios ........................................................................ 21 II. Carbon markets and the role of developing countries: results with the GTAP–E model .................................................... 25 A. No trade in emissions: the Autarky case .................................. 25 B. Emissions trading-annex I and developing countries ............... 27 C. Global emissions trading .......................................................... 34 III. Conclusions and policy implications ............................................. 37 Bibliography…………………………………………………………….39 Annex………………………………………………….…………………41 Serie Medio Ambiente y Desarrollo: issues published ......................... 47 3 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Tables TABLE 1 TABLE 2 TABLE 3 TABLE 4 TABLE 5 TABLE 6 TABLE 7 TABLE 8 TABLE 9 TABLE 10 TABLE 11 TABLE 12 TABLE 13 KYOTO PROTOCOL BASE YEAR EMISSIONS LEVEL AND EMISSIONS LIMITATIONS...................................................................................... 12 ENERGY SUBSTITUTION ELASTICITIES IN GTAP-E ................................................. 18 SUBSTITUTION FOR PRIMARY FACTORS IN GTAP-E ............................................... 19 SECTORAL AGGREGATION FROM THE GTAP DATA BASE, VERSION 6 ............... 20 REGIONAL AGGREGATION FROM THE GTAP DATA BASE, VERSION 6 ............... 21 REDUCTION IN CO2 EMISSIONS (1990 TO 2008-2010) FROM YEAR 2001 ................ 22 LIST OF EMISSIONS TRADING POLICY SCENARIOS ................................................. 24 CHANGE IN CARBON DIOXIDE EMISSIONS ................................................................ 27 CHANGE IN EMISSIONS QUOTA .................................................................................... 28 CARBON TAX EQUIVALENT........................................................................................... 29 CHANGE IN GDP ................................................................................................................ 30 WELFARE CHANGE .......................................................................................................... 31 WELFARE CHANGE FROM CARBON TRADING .......................................................... 32 Diagrams DIAGRAM 1 DIAGRAM 2 DIAGRAM 3 DIAGRAM 4 DIAGRAM 5 MODEL TYPES FOR ECONOMIC ANALYSIS OF CLIMATE POLICY ....................... 13 GTAP-E PRODUCTION STRUCTURE .............................................................................. 15 CAPITAL-ENERGY COMPOSITE ..................................................................................... 15 GTAP-E GOVERNMENT CONSUMPTION ...................................................................... 16 GTAP-E PRIVATE HOUSEHOLD PURCHASES.............................................................. 16 4 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Abstract The Kyoto Protocol provides a framework for the reduction of greenhouse gas emissions from industrialized nations. These reduction targets will have economic impacts that will affect not only those industrialized countries but also other developing countries around the world. In this context, the following document analyzes the economic implications of the reduction of carbon emissions from industrialized countries (Annex I countries under the Kyoto Protocol) and the participation of developing countries, including those in Latin America, under different carbon trading scenarios. The document utilizes the GTAP-E general equilibrium model, which accounts for capitalenergy substitution and carbon emissions associated with intra-industrial consumption, to analyze the economic and welfare impacts of carbon emissions trading. The results show that the participation of developing countries such as China and India lowers the costs of emissions trading for Annex I and non-Annex I countries. For Latin America, the impacts vary depending on whether a country is energy exporting (negative) or energy importing (positive) and whether the United States reduces emissions. For energy exporting countries, the impacts on welfare are negative mostly due to a deterioration of the terms of trade from crude oil, gas and petroleum products, brought about by a decreased demand from the Unites States and other Annex I countries. JEL classification: F21, Q28, Q43. Keywords: Kyoto Protocol, carbon emissions trading, developing countries, Latin America, GTAP-E. 5 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Introduction Climate change is a serious and urgent issue that poses severe threats and risks to ecosystems as well as humankind and its way of life. The scientific community has reached a consensus that the planet is warming up at the fastest rate during the last 10 000 years, and that this change in temperature is caused by the increase in the quantity of carbon dioxide (CO2) and other greenhouse gases (GHG) in the planet’s atmosphere, especially over the last 100 years. This increase is fundamentally linked to anthropogenic activities. Currently, the level of greenhouse gases in the atmosphere is equivalent to near 400 parts per million (ppm) of CO2 equivalent, compared with only 280 ppm before the Industrial Revolution and are expected to rise by over 2 ppm per year if the current trend holds (Stern, 2007). Based on the doubling-up of pre-industrial levels of greenhouse gases, most climate models project a rise in global mean temperatures in the next several decades in the range of 2-5 ºC. For example, a stabilization level of 450 ppm of CO2 eq. would have a 78% of likelihood of exceeding a temperature increase of 2 ºC and a 18% of 3 ºC (Stern, 2007). Alterations in precipitation patterns, the reduction of the world’s ice masses and snow deposits, rising sea levels and changes in the intensity and frequence of extreme weather events are also foreseen consequences (IPCC, 2007). Climate change will affect the economic activity, the population and the ecosystems significantly and will play an essential part in determining the characteristics of and option for economic development in this century. Reducing the potential increase in temperatures requires the stabilization and reduction of the level of CO2 and other GHGs. This reduction cannot be done by one nation or government alone, but requires a commitment from all governments around the world. 7 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… The UN Framework Convention on Climate Change (UNFCCC), the Kyoto Protocol and other treaties provide a framework that supports international cooperation on this issue. The Kyoto Protocol (UNFCCC, 1997) established legal commitments towards the reduction of GHGs from some industrialized countries (called Annex I countries), as well as mechanisms such as emissions trading, the Clean Development Mechanism, and Joint Implementation to help Annex I countries reduce their GHG emissions levels. Currently, there are 193 Parties (192 States and 1 regional economic integration organization) to the Kyoto Protocol to the UNFCCC. The total percentage of Annex I Parties emissions is 63.7%. Non-Annex I countries, including Latin America and the Caribbean region, do not have any GHG emissions restrictions or commitments further to the voluntary agreements. However, they have financial incentives to develop projects that reduce GHG emissions to receive carbon credits, which they can later sell to Annex I countries to help these countries achieve their GHG emissions targets. At the same time, and because of the scale of emissions reductions required, an effective agreement among countries would likely have to involve both developed and developing countries. Thus, in the recents and upcoming United Nations Climate Change Conferences (UNCCC) it has been expected that there be an effective international response to climate change that will require further commitments from Annex I countries under the Kyoto Protocol and from the countries under the Convention. Furthermore, the negotiations for the second commitment period (post 2012) under the Protocol are introducing variants to the global regime, which not only deepen the obligations of developed countries, but can also be reflected in commitments for different sectors/activities worldwide and for developing countries on the basis of criteria of responsibility and capability (Samaniego, 2009). Stern (2008) estimates that an agreement to reduce emissions by 100% by 2050, will only be met if developing countries reduce their per capita emissions by 28% by 2050. Developing country participation will also lower the cost of reducing emissions. De la Torre et al. (2009) argue that a globally efficient solution is only possible if GHG reductions are achieved in low-cost reduction countries, and not necessarily in those countries with the highest level of GHG emissions. Despite the extensive literature on the economics of climate change modelization, there have been few studies with extensive coverage of Latin America. Medvedev and van der Mensbrugghe (2010) try to link macro impacts to income distribution. They use results from a global general equilibrium model with an integrated climate module in tandem with a comprehensive compilation of household surveys for the analysis of within-country impacts in Latin American countries. They find that relative to their share of global emissions, Latin American countries are disproportionately affected by climate change damages. Although welfare declines for all households, agricultural households receive some benefit from rising food prices. Due to its low carbon intensity, the region stands to gain substantially from efficient mitigation or a cap-and-trade system. This study analyzes the potential economic impacts of the reduction of CO2 emissions in developing countries and the participation of these countries in carbon markets. It analyzes the interactions among the economy, the energy sector and the environment. In particular, it assesses the economic effects of the reduction of GHG under the Kyoto Protocol, and the economic implications that the implementation of different trading schemes may have on these developing countries. The analysis focusses on two groups of developing countries. The first is comprised by, major potential players in international carbon trading markets such as the Group of Five (G5), which includes China, India, Mexico, Brazil and South Africa. Given the share of these countries’contributions to global emissions (around 30 percent; EIA, 2009; IEA 2010), it is important to consider these countries in any international effort to reduce CO2 emissions. Then, the analysis considers Latin America and the Caribbean countries, including Mexico and Brazil. Latin America and the Caribbean, despite its small current contribution to global CO2 and GHG emissions (less than 6 percent and around 8%, respectively, excluding emissions associated with land use change), is very vulnerable to climate change (ECLAC, 2009 and 2010). Latin America does not have a single voice in international negotiations, which may be explained by the heterogeneity of countries in the region. Some, such as Mexico, Venezuela or Bolivia, are energy exporters and others, such as Brazil, Mexico, Chile or Costa Rica, are major players in the Clean 8 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Development Mechanism. Mexico and Chile are members of the OECD and, at the same time, the first participates in the G5 together with Brazil. On the other hand, there are many small island States in the Caribbean region that are extremely vulnerable to climate change. Thus, this document makes an effort to address the economic impacts at a country level of different emissions trading scenarios in this heterogeneous group of countries of Latin America and the Caribbean. The following section reviews the Kyoto Protocol and the mechanisms to reduce GHG emissions, including carbon trade markets. The third section explains methodology, including the general equilibrium model, the CO2 emissions database used and the policy scenarios evaluated. The fourth section describes the results for each set of scenarios evaluated, and the last section draws some conclusions and discusses policy implications for developing countries, including Latin America and the Caribbean. 9 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 I. Climate change and reduction of CO2 emissions… The Kyoto protocol The Kyoto Protocol was adopted in 1997, but it was not until 2005 that it entered into force. The details of the implementation of the Protocol were adopted in 2001 in Marrakesh, and are known as the “Marrakesh Accords”. Under the Protocol, industrial countries agreed to cut greenhouse gas emissions by 5.2 percent on average by 2008–2012, as compared to 1990 levels (see table 1). Under Annex B of the Protocol, most Annex I countries will have to reduce their emissions, while some countries, given their 1990 emissions levels will not reduce or will be allowed to emit under the reduction scheme. The Kyoto Protocol has established three main market mechanisms to cope with reductions of GHGs: 1. International emissions’ trading among participating parties – Annex I countries– in the carbon market, where countries with emissions lower than their established targets are able to sell those emissions to countries that are over their targets; 2. Joint implementation (JI) which allows Annex I countries to invest in projects that reduce GHG emissions in other Annex I countries and have the credits generated by those projects count towards their emissions reduction commitment; and 3. The Clean Development Mechanism (CDM), which allows Annex I countries to invest in emission-reduction projects in developing countries and have credits generated from those projects count towards their Kyoto Protocol commitments. The 1 Reduction targets cover emissions of the six main greenhouse gases: Carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride, these last three known as F-gases. 11 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Kyoto Protocol and Marrakesh Accords established a system of emissions trading among 37 developed and transition economies, which represented about 29 percent of all CO2 emissions in the world in 2004 (CAIT, 2008). TABLE 1 KYOTO PROTOCOL BASE YEAR EMISSIONS LEVEL AND EMISSIONS LIMITATIONS Party Australia Austria a Belarus Belgium a Bulgaria Canada a Croatia a Czech Republic Denmark a Estonia European comm. Finland France Germany Greece a Hungary Iceland Ireland Italy Japan a Latvia Liechtenstein a Lithuania Luxembourg Monaco Netherlands New Zealand Norway a Poland Portugal a Romania Russian a Federation a Slovakia a Slovenia Spain Sweden Switzerland a Ukraine United Kingdom Emission limitation or reduction commitme (% of base year/period level) Base year for F-gases Base year level of total national emissions (tonnes CO2 equivalent) 108 87 b 92 92,5 92 94 95 92 79 92 92 100 100 79 125 94 110 113 93,5 94 92 92 92 72 92 94 100 101 94 127 92 1990 1990 1995 1995 1995 1990 145 728 763 132 618 658 593 998 462 1995 1995 1995 1990 or 1995 1995 1990 1995 1995 1995 1990 1995 1990 1995 1995 1990 1995 1995 1995 1995 1990 1990 1995 1995 1989 194 248 218 69 978 070 42 622 312 4 265 517 719 71 003 509 563 925 328 1 232 429 543 106 987 169 115 397 149 3 367 972 55 607 836 516 850 887 1 261 331 418 25 909 159 229 483 49 414 386 13 167 499 107 658 213 034 498 61 912 947 49 619 168 563 442 774 60 147 642 278 225 022 100 1995 3 323 419 064 92 92 115 104 92 100 87,5 1990 1995 1995 1995 1990 1990 1995 72 050 764 20 354 042 289 773 205 72 151 646 52 790 957 920 836 933 779 904 144 79 049 657 Source: UNFCCC website: http://tr.im/iKpn. Note: 1) The base year data are as determined during the initial review process; 2) Targets under the burden-sharing agreement of the European Community are shown in italics. a A Party undergoing the process of transition to a market economy (an EIT Party). b The amendment to the Kyoto Protocol with an emission reduction target for Belarus has not entered into force yet. 1Annex I Parties with the base year other than 1990 are Bulgaria (1988), Hungary (average of 1985-1987), Poland (1988), Romania (1989), Slovenia (1986). 12 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Under carbon trading markets, countries that have emissions to spare –emissions permitted but not used– are able to sell this excess capacity to countries that are over their targets. In 2005, the European Union started its emissions trading system, regulating 10 000 facilities with a total value of 50 billion dollars in the international carbon market -more than 75 percent of all the world carbon market in 2007 (Capoor and Ambrosi, 2008). This initiative will continue beyond 2012. At the same time, there are domestic emission’s trading systems taking shape in other Annex I countries, including Australia, New Zealand, Japan, United States, Canada, and Switzerland. For some countries such us the United States, Canada and Japan, there are also sub-regional initiatives (Flachsland et al., 2009). However, these regional markets are limited in that they may not incorporate some countries that are most effective in reducing GHGs emissions such as some developing countries. Evans (2003) argues that international emissions’ trading has the potential to lower the cost of reducing emissions and promote environmentally friendly investments in transition economies. De la Torre et al. (2009) go beyond transition economies and argue that a global and cost-effective solution will only be achieved with the participation of countries that have a low cost of reducing GHG emissions. A. Economic modeling on climate change and emissions trading The literature on economic modeling of the implementation of the Kyoto Protocol and carbon emissions trading has expanded since the signing of the Protocol. Springer (2003) compiles the results from 25 models of the market for tradable greenhouse gas emission permits under the Kyoto Protocol. The models are grouped in five major non-exclusive groups (see diagram 1): a) Integrated assessment models, which include physical and social processes, and an economic component as one of the following models; b) computable general equilibrium models; c) emission trading models; d) Neo-Keynesian macroeconomic models; and e) energy system models. DIAGRAM 1 MODEL TYPES FOR ECONOMIC ANALYSIS OF CLIMATE POLICY Macroeconomic models Integrated Assessment models AIM GRAPE MERGE Energy system models IGSM RICE Emissions trading models MACGEM PET ZHANG POLES ECN CICERO ENEA RS Source: Springer (2003). Note: The GTAP-E model is classified within CGE models. 13 G-CUBED EDGE EPPA GEM-E3 GREEN GTEM MS-MRT PACE SGM WAGE WORLDSCAN CGE models OXFORD CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… General equilibrium models and neo-Keynesian macroeconomic models are top-down models since they use aggregate economic data on all sectors of the economy. On the other hand, energy system models offer more sectoral detail for the energy sector than CGE and macroeconomic models, and are therefore called bottom-up models. For this study, we use an applied general equilibrium model. Specifically, we use a modified version of the Global Trade Analysis Project (GTAP) model and the GTAP-E database. The following subsections consist of three parts. First, we discuss the GTAP-E model and the special features that distinguish it from other energy models as well as the standard GTAP model. Second, the document discusses the data, including economic data, CO2 emissions, and parameters used. Finally, we describe the policy scenarios and regional and sectoral aggregation of the GTAP-E model and database. B. The GTAP - E model As mentioned previously, we use an applied general equilibrium model known as the GTAP-E (Burniaux and Truong, 2002; McDougall and Golub, 2009). The GTAP-E model is an extension of the GTAP model (Hertel, 1997), which is a standard, multi-region, multi-sector model that includes explicit treatment of international trade and transport margins, global savings and investment, and price and income responsiveness across countries. It assumes perfect competition, constant returns to scale, and an Armington specification for bilateral trade flows that differentiates trade by origin. The GTAP-E model modifies the standard GTAP model and database by incorporating a modified treatment of energy demand that includes energy-capital substitution and inter-fuel substitution, carbon dioxide accounting, taxation, and emissions trading. It represents a top-down approach of energy modeling, which, given detailed economic description at the macro level, estimates the demand of energy inputs in terms of the sectoral output demand. It estimates these demands through highly aggregated production or cost functions. Some of the studies that have used the GTAP-E model for analysis of carbon emissions trading include: Hamasaki and Truong (2001), Hamasaki (2004), Nijkamp et al. (2005), Dagoumas et al. (2006) and Houba and Kremers (2007). The GTAP-E model further modifies the standard GTAP model by incorporating the following additional features. On the production side, the GTAP-E model refines the standard GTAP model and introduces a new production system, with additional intermediate levels of nesting and combining capital with energy, rather than with other endowments. In the standard GTAP model, energy inputs are included in intermediate inputs (outside value added). The GTAP-E model incorporates energy in the value added nest (see diagram 2). In this case, energy inputs are combined with capital to produce an energy-capital composite. This energy-capital composite is combined with other primary inputs in a value added-energy nest using a CES function. 14 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… DIAGRAM 2 GTAP-E PRODUCTION STRUCTURE OUTPUT σ=0 VALUE ADDED ENERGY (INCLUDING ENERGY INPUTS) ALL OTHER INPUTS (EXCLUDING ENERGY INPUTS BUT INCLUDING ENERGY FEEDSTOCK) σD σVAE DOMESTIC IMPORTS σM NATURAL RESOURCES LAND LABOR CAPITAL-ENERGY COMPOSITE REGION 1 σLAB REGION R UN-SKILLED SKILLED Source: Burniaux, J.M. y T.P. Truong. 2002. At the same time, energy commodities are separated into electric and non-electric commodity groups (see diagram 3). Within these two groups, there is a level of substitution within the nonelectricity group (σNELY) and between the electricity and non-electricity commodity groups (σENER). This nesting continues as it separates non-electric into coal and non-coal, and non-coal into gas, petroleum and petroleum products, with a substitution elasticity σNCOL.2 DIAGRAM 3 CAPITAL-ENERGY COMPOSITE CAPITAL-ENERGY COMPOSITE σKE ENERGY CAPITAL σENER NON-ELECTRIC ELECTRIC σNELY NON COAL COAL σNCOL GAS PETROLEUM PETROLEUM PRODUCTS Source: Burniaux, J.M. y T.P. Truong. 2002. 2 This production structure can be further modified to include biofuel production as in Birur et al., 2007. 15 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… On the consumption side, the GTAP-E model modifies both private and government consumption (see diagrams 4 and 5). In the standard GTAP model there is a separation of ‘private’ from ‘government’ consumption and private savings. Government consumption has a Cobb-Douglas structure (σG = 1) in the standard GTAP model. This structure changes in the GTAP-E model, separating energy from nonenergy commodities. The substitution elasticities assumed in the GTAP-E model (σGENNE = 0,5 and σGEN = 1) allows for substitution between energy and non-energy commodities. However, if σGENNE = σGEN = 1, then the GTAP-E structure reverts to the standard GTAP model. The household private consumption follows the standard GTAP model, which uses the constant-difference of elasticities (CDE) functional form. The GTAP-E model specifies the energy composite using a CES functional form with a substitution elasticity of σPEN = 1. DIAGRAM 4 GTAP-E GOVERNMENT CONSUMPTION Demand for composite σGENNE Energy Composite Non-energy Composite σGEN Electricity Gas Coal σGNE Petroleum Petroleum products Source: Burniaux, J.M. y T.P. Truong. 2002. DIAGRAM 5 GTAP-E PRIVATE HOUSEHOLD PURCHASES Household Demand for Private Goods CDE Non-energy Products Energy Composite σPEN Electricity Coal Gas Petroleum Source: Burniaux, J.M. y T.P. Truong. 2002. 16 Petroleum Products CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… In this study, we use a new version of the GTAP-E model (McDougall and Golub, 2009). McDougall and Golub (2009) modify previous GTAP-E model versions (Burniaux, 2001; McDougall, 2006) by: a) reinstating emissions trading with trading blocs; b) calculatings carbon dioxide emissions from the bottom up; c) reinstating carbon taxation, not converting rates from specific to ad valorem; d) reorganizing the production structure to group equations by nest and with complete set of technological change variables; and e) revising the calculation of the contribution of net permit trading revenue to welfare change. In this case, the GTAP-E model includes emissions permits and emissions trading by allowing trading blocks, which trade emission permits among themselves. This allows for block-level emissions and emissions quotas to be the same. The model also allows carbon taxation, where it relates the level of carbon emissions to a carbon tax rate. C. Economic data, CO2 emissions and parameters The GTAP-E modifies the standard GTAP database by including CO2 emissions by region, commodity and use. In this paper, we use version 6 of the GTAP database which contains 87 regions in its full unaggregated database and has a base year of 2001.3 For CO2 emissions, the data is based on estimates from Lee (2008) that were transformed to a compatible GTAP format (Ludena, 2007). These carbon dioxide emissions data contain emissions from intermediate use, government and private consumption of both domestic and import products. This paper presents improvements from previous studies that have used the GTAP-E model, as it uses a new version of the GTAP-E model that corrects some shortcomings from Burniaux and Truong (2000), and uses more up-to-date economic and CO2 emissions data. As for parameters, the GTAP-E model incorporates substitution elasticities to deal with energy substitution at different levels. It includes substitution elasticities in capital-energy sub-production (σKE), energy sub-production (σENER), non-electricity energy sub-production (σNELY) and non-coal energy subproduction (σNCOL). It also modifies the substitution elasticity for primary factors (σVAE) as it adds a regional dimension to this GTAP parameter. In this paper, we use substitution parameters econometrically estimated by Beckman and Hertel (2009) ( see table 2). 3 We attemped using version 7 of the GTAP Data Base, by transforming the CO2 emissions data built by Lee (2008) to GTAP format. Lee constructed CO2 emissions data for version 7.0 of the GTAP database with 113 regions and a base year of 2004. However, unlike the CO2 emissions data for version 6.0 of the GTAP database, the data did not included differentiation of domestic and import sources. 17 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… TABLE 2 ENERGY SUBSTITUTION ELASTICITIES IN GTAP-E Capital-Energy Sectors (σ Electric vs, Non-Electric (σ ) KE ENER Coal vs, Non-Coal (σ ) Non-Coal vs, Non-Electric (σ ) NELY NCOL ) Coal 0 0 0 Crude Oil 0 0 0 0 a 0 0 0 0 Gas Petroleum and coal products 0 0 b 0 0 0 0.25 Electricity 0.16 0.07 0.25 0.25 0.16 0.07 0.25 Energy Intensive Industries c 0.25 0.16 0.07 0.25 Other Industries and Services d 0.25 0.16 0.07 0.25 Agriculture, forestry and fishery Source: Beckman and Hertel (2009) a Gas includes gas production and gas distribution. b Agriculture, forestry and fishery includes paddy rice, wheat, other cereals, fruits and vegetables, oilseeds, sugar crops, plant-based fibers, other crops, bovine cattle, other cattle, raw milk, wool, forestry and fishing. c Energy Intensive Industries include mining, chemical products, mineral products, ferrous metals and metals nec.. d Other Industries and Services include processed meat, other meat, vegetable oils, processed rice, sugar, other food, beverage and tobacco, textiles, wearing apparel, leather products, wood products and paper publishing. 18 Sectors Regions USA Crops, Livestock Forestry, Fishing, Mining Coal Oil Gas 0.24 0.20 0.50 0.10 0.02 Light manufacturing 1.18 Paper, Oil products, Chemical, Mineral, Construction Metal, Heavy manufacturing, Electricity 1.26 1.40 Transport Comm, 1.68 Other services 1.35 EU 15 0.24 0.20 0.40 0.10 0.08 1.17 1.26 1.40 1.68 1.35 Japan 0.24 0.20 0.50 0.10 0.00 1.17 1.26 1.40 1.68 1.37 Rest of Annex I countries (RoAI) 0.24 0.20 0.58 0.10 0.09 1.17 1.26 1.40 1.68 1.35 EU 12 0.24 0.20 0.40 0.10 0.08 1.18 1.26 1.40 1.68 1.38 Annex I countries (EUSTA1) 0.24 0.20 0.30 0.10 0.25 1.17 1.26 1.40 1.68 1.35 Rest of Eastern Europe (EEFSU) 0.24 0.20 0.50 0.10 0.05 1.19 1.26 1.40 1.68 1.40 China 0.24 0.20 0.40 0.10 0.03 1.22 1.26 1.40 1.68 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 3 SUBSTITUTION FOR PRIMARY FACTORS IN GTAP-E 1.39 19 0.24 0.20 0.70 0.10 0.33 1.18 1.26 1.40 1.68 1.40 South Africa 0.24 0.20 0.50 0.05 0.05 1.18 1.26 1.40 1.68 1.40 Energy exporters 0.24 0.20 0.50 0.10 0.24 1.19 1.26 1.40 1.68 1.38 Argentina 0.24 0.20 0.60 0.10 0.15 1.17 1.26 1.40 1.68 1.35 Brazil 0.24 0.20 0.65 0.10 0.10 1.17 1.26 1.40 1.68 1.32 Chile 0.24 0.20 0.40 0.10 0.18 1.18 1.26 1.40 1.68 1.36 Colombia 0.24 0.20 0.60 0.10 0.15 1.16 1.26 1.40 1.68 1.35 Mexico 0.24 0.20 0.60 0.10 0.15 1.18 1.26 1.40 1.68 1.42 Peru 0.24 0.20 0.40 0.10 0.18 1.19 1.26 1.40 1.68 1.29 Uruguay 0.24 0.20 0.60 0.10 0.15 1.16 1.26 1.40 1.68 1.33 Venezuela (Bolivarian Republic of) 0.24 0.20 0.60 0.10 0.15 1.16 1.26 1.40 1.68 1.41 Bolivia (Plurinatorial State of), Ecuador 0.24 0.20 0.40 0.10 0.18 1.15 1.26 1.40 1.68 1.36 Rest of South America 0.24 0.20 0.40 0.10 0.18 1.15 1.26 1.40 1.68 1.36 Central America 0.24 0.20 0.40 0.10 0.18 1.20 1.26 1.40 1.68 1.34 The Caribbean 0.24 0.20 0.40 0.10 0.18 1.19 1.26 1.40 1.68 1.34 ROW 0.24 0.20 0.50 0.10 0.19 1.20 1.26 1.40 1.68 1.38 Source: Beckman and Hertel (2009). Climate change and reduction of CO2 emissions… India CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… We aggregate the GTAP database into 19 sectors and 25 regions (see table 4). Given our focus in the economic impacts on developing countries, and the role that these countries, including Latin America and the Caribbean, can play in emissions trading, the regional aggregation focuses on these countries with 16 out of the 25 regions/countries. For sectors, we focus on energy sectors such as coal, crude oil, gas, petroleum and coal products, and electricity, and energy intensive sectors or that are related to carbon emissions such as pulp and paper, chemical products, mineral products (concrete production), and metal products. TABLE 4 SECTORAL AGGREGATION FROM THE GTAP DATA BASE, VERSION 6 No Region / Country 1 Crops Description (57 sectors) Paddy rice, wheat, cereal grains, fruits and vegetables, oils seeds, sugar crops, plant-based fibers, other crops 2 Livestock Livestock, pigs, poultry, raw milk, wool 3 Forestry Forestry 4 Fishing Fishing 5 Coal Coal Extraction 6 Crude oil Oil Extraction 7 Gas Gas Extraction and Distribution 8 Mining Mining 9 Light manufacturing Processed Food (meat, vegetable oil and fats, dairy products, processed rice, sugar, etc.), beverages and tobacco, textiles, wearing apparel, leather products, wood products 10 Paper Paper Products 11 Processed oil products Petroleum and coal products 12 Chemical products Chemical, rubber and plastic products 13 Mineral products Glass, concrete and other mineral products 14 Metal products Ferrous Metals and other 15 Heavy manufacturing Metal products, motor vehicles and parts, transport equipment, machinery and equipment, other manufactures 16 Electricity Electricity 17 Construction Construction 18 Transport 19 Other services Transport Services, Air and Water Transport Services Communication, financial services, insurance, business services, ecreation and other services, public administration, dwellings Source: Authors based on GTAP Database. 20 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… TABLE 5 REGIONAL AGGREGATION FROM THE GTAP DATA BASE, VERSION 6 No Region/Country Description (87 regions) 1 USA United States 2 EU 15 Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, UK 3 Japan Japan 4 Rest of Annex I countries (RoAI) Australia, New Zealand, Canada, Switzerland, Norway, Rest of EFTA 5 EU 12 Cyprus, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, Slovenia, Bulgaria, Romania 6 European Annex I countries (EUSTAnI) Croatia, Russia, rest of Former Soviet Union 7 Rest of Eastern Europe (EEFSU) Albania, Rest of Eastern Europe, Rest of Europe 8 China China 9 India India 10 South Africa 11 Energy Exporters South Africa Indonesia, Malaysia, Vietnam, Rest of South east Asia, Rest of Western Asia, Rest of North Africa, Central Africa, South Central Africa, Rest of Eastern Africa 12 Argentina Argentina 13 Brazil Brazil 14 Bolivia (Plurinatorial State of) Bolivia (Plurinatorial State of) 15 Chile 16 Colombia Colombia 17 Ecuador Ecuador 18 Mexico Mexico Chile 19 Paraguay Paraguay 20 Peru Peru 21 Uruguay Uruguay 22 Venezuela (Bolivarian Republic of) Venezuela (Bolivarian Republic of) 23 Central America Costa Rica, Guatemala, Nicaragua, Panama, Belize, El Salvador, Honduras 24 The Caribbean Cuba, Dominican Republic, Haiti, Jamaica, PuertoRico, Trinidad and Tobago, etc, 25 ROW Rest of the World Source: Authors based on GTAP Database. D. Policy scenarios Flachsland et al. (2009) analyzed international emissions trading under the context of what they call “trading architectures”, with two options framed as top-down (UNFCCC driven) and three as bottom-up (driven by individual countries or regions). These two approaches are a trade-off among political feasibility, the effectiveness of the trading system in curbing GHG emissions and its cost effectiveness. In our analysis, we attempt to cover these different “trading structures” as we formulate different scenarios for the reduction of carbon dioxide emissions and emissions trading, with and without the participation of developing countries. As explained previously, GTAP-E models emissions trading by dividing the world into trading blocks, which trade emissions permits among themselves. This allows formulating scenarios where, with no emissions trading, each region is its own block. For the case where there is Annex I trading, only Annex I countries form one trading block, which excludes non-Annex I regions. With global trading, all regions trade 21 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… carbon emissions permits, as the world becomes one single trading block. Based on this setting, we formulate four basic scenarios, which are elaborated further in the analysis. The order of these scenarios is described in ascending way, based on the extent of development of the carbon permits market: • Kyoto Protocol without emissions trading, • Kyoto Protocol with emissions trading among countries in Annex I, • Kyoto Protocol with emissions trading among countries in Annex I and participation of some developing countries, • Kyoto Protocol with global emissions trading. In the first (base) scenario, each Annex I country must individually meet their Kyoto target of CO2 emissions reduction with no emissions trading across countries. In this case, Annex I countries meet their commitments individually without relying on the use of flexibility mechanisms. The CO2 emission constraints assumed for this study are shown in (see table 1). Although the U.S. has indicated that it will not ratify the Kyoto Protocol, for comparison purposes, we have assumed a reduction target of 7 percent for this country. In order to harmonize the Kyoto Protocol timing scheme with the baseline year of the GTAP-E database, we assumed that Annex I countries reduce carbon emissions between 1990 and 2008-2012, the first commitment period of the Protocol, taking into consideration CO2 emissions levels at 2001 (the base year of the CO2 data used in this study). To do this, we utilise aggregate anthropogenic emissions of CO2 for 1990 and 2000 (UNFCCC, 2007). Based on the average annual change rate of emissions between 1990 and 2000, we interpolate data from the year 2000 to estimate the emissions levels for 2001. With these levels, we adjust the reduction emissions targets based on 1990 to the year 2001 by comparing the target emissions levels with those obtained for 2001. The estimated emissions constraints are as follows: United States (21%), EU15 (6%), Japan (12%), and Rest of Annex I countries (16%) (see table 6). TABLE 6 REDUCTION IN CO2 EMISSIONS (1990 TO 2008-2010) FROM YEAR 2001 Country/Region Description USA United States EU 15 European Union 15 Japan Japan RoAI Change in CO2 emissions Rest of Annex I countries -20.78 -5.37 -11.8 -15.89 EU 12 European Union – new members 48.81 EUSTANI Other European Annex I countries 64.31 EEFSU Rest of Europe 48.81 Source: Authors’ own estimations based on UNFCCC (2007). Within the first scenario we also tested whether some developing countries, namely the Group of Five (China, India, Mexico, Brazil and South Africa -CIMBSA), reduce emissions by 5 percent. We focus on these countries since they are more likely to reduce emissions in climate change negotiations. The amount of reduction in emissions is arbitrary, but can give us a measure of the potential impact of reduction from these countries. 4 In the second scenario, we assume emissions reductions by Annex I countries with emissions trading among these countries only. The emission constraints applied to Annex I countries are the same as in the first scenario, augmented by the amount of “hot air” from the former Soviet Union.5 “Hot air” 4 5 Anger (2008) also explores the case that no excess permits will be allocated to installations of the Former Soviet Union, as they question whether this strategy will prevail in the future. The emission surplus originating from the economic recession in the Former Soviet Union – often referred to as “hot air” – suffices to compensate the reductions to be achieved in the remaining Annex I countries. 22 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… represents the assigned amounts under the Kyoto Protocol that exceed anticipated emissions requirements even in the absence of any limitation. CO2 emissions levels from EU12 and EUSTANI countries are assumed to not change (emission target equal to zero), given that these levels allow them to emit (49 and 64 percent under the protocol, respectively, (see table 6). Regarding the issue of “hot air” from Easter European and Former Soviet Union countries, we explore several scenarios with and without “hot air”.6 The third scenario considers the participation of non-Annex I countries. First, we assume emissions trading among Annex I countries and major emitting developing countries, including China, India, Mexico, Brazil and South Africa (CIMBSA). As in the first scenario, CIMBSA countries reduce their emissions by 5 percent. Then, we focus on Latin American and Caribbean countries and their potential to participate in emissions trading.7 In this case, we do not assume any specific reduction in emissions quota from these countries, but their emissions do not change (neither increase nor decrease). Finally, in a fourth scenario we focus on a true global cap-and-trade system of emissions trading between Annex I and non-Annex I countries. We formulate two scenarios, one with only Annex I countries reducing emissions and with “hot air” from FSU countries. The second scenario offers an alternative view with Annex I countries and CIMBSA reducing emissions, but without “hot air”. For both scenarios the CO2 emissions quota constraints for all other countries, including developing countries, are set to be zero. Finally, within each of the four major scenarios, we tested whether the Unites States reduced their emissions or not. In cases with emissions trading and reduction in emissions from the United States, the United States participates in emissions trading; while for those cases where the Unites States does not reduce emissions, it does not participate in carbon markets. For those scenarios with emissions trading, countries that trade emissions are part of a trading block. For scenario 3, where non-Annex I countries also trade, we modified the closure and parameter file in GTAP-E to allow specific regions to trade with Annex I countries. As McDougall and Golub (2009) mention, in the standard closure with no emissions trading, emissions are always equal to the emissions quota. That is, the quota is meaningless and follows emissions as if no constraints in emissions were imposed. However, when regions trade, regional emissions and regional quotas are decoupled by making the power of emissions exogenous and emissions quota endogenous. A summary of the scenarios is in. Column “USA” denotes whether the United States reduces CO2 emissions. In those scenarios with emissions trading among Annex I countries but without emissions reduction by the United States, this country does not participate in emissions trading. The column “FSU” denotes those scenarios where we account for the amount of “hot air” from countries in the Former Soviet Union. The column “CIMBSA” denotes those scenarios where China, India, Mexico, Brazil and South Africa reduce their emissions by 5 percent. These policy scenarios cover the emissions trading architectures described by Flachsland et al. (2009), with a combination of top-down and bottom-up approaches. That is, global initiatives in combination with national or regional trading systems.8 6 7 8 If emissions trading is used, the emission surplus in the Former Soviet Union can be, in principle, transferred to other Annex I Parties at no cost. Other authors explore the scope of the carbon emissions market. Zhang (2004) explores this issue from no emissions trading to full global trading of both Annex I and non-Annex I countries, with a focus on China’s participation in trading markets. For these scenarios, we assume that there is going to be a single price among trading blocks or countries, without any market imperfections such as a monopoly of trading markets or full price disclosure among trading countries. 23 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… TABLE 7 LIST OF EMISSIONS TRADING POLICY SCENARIOS No Scenario Description USA 1 Kyontr1a Kyoto without emissions trading, with USA 2 Kyontr1b Kyoto without emissions trading, without USA 3 Kyontr2a Kyoto without emissions trading, with USA and CIMBSA (-5%) 4 Kyontr2b Kyoto without emissions trading, without USA and with CIMBSA (-5%) 5 Kyotr0 Kyoto with Annex I countries emissions trading (FSU+emissions)  6 Kyotr1c Kyoto with Annex I emissions trading – with USA(FSU=0)  7 Kyotr2a Kyoto with Annex I emissions trading – without USA(FSU=0) 8 Kyotr3a Kyoto with Annex I emissions trading–with USA CIMBSA-5% 9 Kyotr3b Kyoto with Annex I emissions trading, without USA with CIMBSA-5% 10 Kyotrla1 Kyoto with Annex I emissions trading-with USA with Latin America 11 Kyotrla2 Kyoto with Annex I emissions trading – without USA with Latin America 12 Kyowtr1 Kyoto with world wide emissions trading - (FSU+emissions)  13 Kyowtr2 Kyoto with world wide emissions trading - FSU=0CIMBSA-5%  FSU CIMBSA            Source: Authors. Note: USA denotes that the United States reduces its emissions and participates in emissions trading (for those scenarios where trading is allowed); FSU denotes scenarios where we consider “hot air” from Former Soviet Union countries; CIMBSA denotes scenarios where there is a 5% reduction in emissions from China, India, Mexico, Brazil and South Africa. 24 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… II. Carbon markets and the role of developing countries: results with the GTAP–E model As discussed earlier in this document, the set of scenarios that we have analyzed range from no trade in emissions to a global trading system, and cases in between. The purpose of this analysis is to consider a complete set of possible scenarios, and measure the impacts that these emissions trading structures could have on Latin America and the Caribbean. At the same time, this study seeks to measure the role that developing countries (including Latin American countries) can have within these trading structures, and the impact associated with it. The structure of the following section is in ascending order of the extent of development of the carbon permits market, beginning with no trade and moving towards complete global emissions trading. Our discussion focuses on the reduction in CO2 emissions (see tables 8 and 9) and predicting the size of carbon tax necessary to achieve those reductions (see table 10), as well as impacts on GDP (see table 11) and welfare (see tables 12 and 13). A. No trade in emissions: the Autarky case We begin our discussion with the results from the scenarios with no emission trading, and the several variations, with and without US participation, as well as with the participation of developing countries in emissions reduction, namely China, India, Brazil, Mexico and South Africa. In this case, countries reduce their emissions, but without a system of trade emissions in place. 25 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… For emissions reductions, (see table 8) shows the percentage change in carbon dioxide emissions for all countries and regions from 2001 to the period 2008-2012. For Annex I countries (EU15, Japan, Rest of Annex I countries [RoAI] and USA), the first two scenarios (kyontr1a and kyontr1b) represent the current status quo, where only Annex I countries are required under the Kyoto protocol to reduce emissions. The second scenario is the closest to the current status quo, as the United States has not ratified the Kyoto Protocol but the rest of the Annex I countries reduce their emissions. In the first scenario, emissions are reduced in Annex I countries according to their targets; however, emissions for all non-Annex I countries increase to almost 3 percent for some countries. This effect, known as carbon leakage, is one of the problems of a system without commitments at the global level, where some countries may reduce their emissions, while others, without any binding constraints, may increase theirs. For the second scenario, without reduction in emissions from the U.S., the change in emissions for nonAnnex I countries is positive but lower than in scenario 1 (and even negative for India). As selected developing countries (CIMBSA) voluntarily reduce their emissions levels by 5 percent (kyontr2a and kyontr2b), non-Annex I countries also increase their emissions. In this case, nonAnnex countries increase emissions at a higher level than in the first two scenarios, as CIMBSA countries reduce their emissions, allowing extra room for non-Annex I countries to increase their emissions.9 The cost associated with these reductions is shown in table 10. The carbon tax equivalent (in US$ per ton) in scenario 1 ranges from $9.72 for the EU15 to $36.2 for Japan. For the United States and the rest of Annex I countries the carbon tax equivalent is close to $22 per ton. As developing countries are included, it is important to note that for those countries to reduce 5 percent of their emissions, the cost is lower than any Annex I country. The cost is the lowest for India (less than $1 per ton), followed by China ($1.5-1.6 per ton) and South Africa ($4). For the two Latin American countries, Brazil and Mexico. the cost is higher, similar to that of the European Union, at around $7-9 per ton. These results reflect the advantage of developing countries over developed countries in reducing CO2 emissions at a lower cost, which is analysed in more depth in later sections. The impacts on GDP and welfare are found in table 10 and table 11. For GDP, we focus on the sign of changes in GDP, and not on the magnitude which is less significant.10 As expected. undel all scenarios. for Annex I countries. reducing emissions has a marginal negative impact on GDP. As the United States pulls out of Kyoto, even the negative impacts on GDP disappear. It is also important to note that as the United States reduces its emissions, it has negative impacts on energy exporting countries. including Venezuela. As the United States reduces its emissions, it curtails consumption of energy products, such as oil and petroleum products, and has a direct effect on these energy exporting countries. For China. India, Brazil, Mexico and South Africa, reducing their emissions has a marginal negative effect on GDP of each countryl, except India. As mentioned before, India’s cost of reducing emissions is the lowest among all developed and developing countries considered, which allows them to have minimum impact on their GDP. For welfare changes, all non-trade scenarios predict welfare losses between 19 and 20 billion dollars per year, with those scenarios without US participation showing the fewest losses. In the first scenario, one third of welfare losses comes from developing countries. Most of those countries affected are energy exporting countries (with a 10 billion loss), whose losses are higher than those of Japan or the rest of Annex I countries. Most of these welfare losses for energy exporting countries come from terms of trade. For example, for Venezuela. an energy exporter, and the Latin American country with the largest welfare loss, practically all losses come from terms of trade in the crude oil and petroleum products sectors. In the second scenario, as the United States does not reduce emissions, there is a direct effect on most developing countries. For those energy exporting countries, there is a reduction of any potential welfare loss. However. for energy importing countries, there is an inverse effect, as any welfare gain is reduced (as in China. India 9 10 Since there is no trade, each country and region is its own block, and results in Table are the same as in Table . Changes in GDP are quite small mainly due to the size of shocks and the static nature of the model itself, which does not capture the dynamics of carbon emissions reduction. 26 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… or Brazil). This effect on energy importing countries comes from terms of trade, as reduction in prices of energy commodities such as crude oil or petroleum products is reversed. Finally, as CIMBSA countries reduce their emissions, there is a negative effect on their welfare. The effect of the United States on these countries is the same, except for Mexico. Given the close ties between the Mexican and the United States economies, as well as the Mexico’s role as a large energy exporter, no reduction of US emissions has a positive effect on the Mexican economy. For Mexico, the cost in welfare of reducing emissions under no trade of emissions is approximately 200 million dollars per year. B. Emissions trading-annex I and developing countries In this section, we analyze emissions trading among Annex I countries, and include the participation of developing countries in the trading scheme, with a special focus on CIMBSA and Latin American countries. As Annex I countries reduce their emissions, and we account for the amount of “hot air” from the Former Soviet Union (FSU) countries (kyotr0), the change in carbon dioxide emissions for all countries becomes close to zero (see table 8). The change in emissions at the block level (see Table ) for Annex I countries is 0.37 percent, that is, the overall change in emissions when we account for the U.S., Japan, EU15 and other Annex I countries reduction and the “hot air” from FSU countries is almost zero with emissions trading among this set of countries. As a result, the effective cost of reducing emissions is close to zero (see table 10). As the changes in emissions are close to zero, so are the changes in GDP. For welfare, there is a positive welfare effect for the world of 208 million dollars per year. For welfare changes from carbon trading (see table 13), the net effect is zero, with welfare gains for non-FSU Annex I countries and welfare losses for FSU countries. These welfare gains and the neutrality of carbon trading demonstrate the advantage of emissions trading versus no trading. The second and third scenarios consider the case of emissions trading among Annex 1 countries (with and without the United States), but without “hot air” from FSU countries. These two scenarios allow us to test the case where FSU countries maintain their emissions quota at a constant level. Results show that the change in CO2 emissions varies between the two scenarios (see table 8). As the United States reduces its emissions, it also participates in the carbon emissions market. With the participation of the US, the reduction in emissions for Annex I countries is larger than when the US does not reduce emissions and does not participate. Also, as Annex I countries reduce their emissions, the level of carbon leakage from developing countries is largest when Annex I countries reduce the most. The reduction at the block level is larger with United States participation in the carbon market (12 percent) than without (5,7 percent). This level of reduction is directly related to the level of the carbon tax necessary to reduce CO2 emissions. When the United States participates in the carbon market, the level of reduction in CO2 emissions is larger, with a carbon tax equivalent of $14.74 per ton, However, when the Unites States does not participate in the carbon markets, both the level of reduction in CO2 emissions and the level of carbon tax necessary to reduce emissions ($7.05 per ton) are lower. It is important to note that these carbon tax equivalents are lower than the tax at any level without trade in CO2 emissions, which emphasizes the importance of a trading market for emissions. For welfare, same as before, when the United States reduces emissions, there are welfare losses, which also directly affect energy exporting countries. However, the level of welfare losses is relatively lower than without trade. As for welfare changes from carbon trading. the results show that when the US does not participate in carbon emissions trading, welfare gains for other Annex I countries are reduced given that the size of the market shrinks as the US leaves the carbon trading market. 27 (Percentages) No Trade Emissions Trading World Trade Region kyotr0 kyotr1c kyotr2a kyotrLA2 kyowtr1 -20.78 kyontr1a 0.41 -20.78 0.48 0.36 -14.78 0.29 -9.34 0.22 -13.52 0.27 0 -7.94 EU 15 -5.37 -5.37 -5.37 -5.37 0.20 -7.96 -4.67 -4.94 -2.37 -7.31 -3.82 0 -4.12 Japan -11.80 -11.80 -11.80 -11.80 0.26 -5.26 -3.11 -3.24 -1.69 -4.80 -2.57 0 -2.74 RoAI -15.89 -15.89 -15.89 -15.89 0.27 -11.37 -6.31 -7.05 -3.23 -10.19 -5.04 0 -5.84 USA kyontr1b kyontr2a kyontr2b kyotr3a kyotr3b kyotrLA1 kyowtr2 EU 12 1.54 0.95 1.63 1.04 2.19 -16.93 -10.22 -11.57 -5.77 -15.75 -8.64 0.01 -10.07 EUSTAI 0.98 0.58 1.06 0.65 0.27 -12.58 -6.64 -7.72 -3.38 -11.51 -5.42 0 -6.58 EEFSU 1.99 0.94 2.11 1.05 0.37 -15.37 -8.56 -9.65 -4.40 -13.93 -6.90 0 -7.95 China 0.63 0.28 -5.00 -5.00 -0.02 0.69 0.23 -19.71 -10.41 0.46 0.14 0.01 -17.32 India 0.09 -0.32 -5.00 -5.00 0.00 0.17 -0.08 -24.59 -13.73 0.22 -0.03 5.32 -22.23 South Africa 1.73 0.99 -5.00 -5.00 -0.05 2.07 0.86 -11.53 -5.24 1.42 0.53 0 -9.34 Energy exp 1.26 0.44 1.34 0.51 -0.03 1.39 0.41 1.04 0.29 1.16 0.32 0 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 8 CHANGE IN CARBON DIOXIDE EMISSIONS -5.52 28 1.02 0.36 1.15 0.48 -0.03 1.13 0.35 0.91 0.27 -6.14 -2.91 0 -3.35 Brazil 1.90 0.63 -5.00 -5.00 -0.04 1.90 0.52 -5.97 -2.84 -8.73 -4.45 0 -5.02 Chile 0.39 0.22 0.44 0.27 -0.01 0.37 0.12 0.33 0.11 -9.05 -5.51 0.01 -6.13 Colombia 2.67 0.66 2.83 0.79 -0.06 2.43 0.54 1.76 0.39 -8.22 -4.28 0 -4.49 Mexico 1.43 0.34 -5.00 -5.00 -0.03 1.28 0.27 -5.23 -2.30 -8.19 -3.77 0 -4.35 Peru 2.20 0.69 2.37 0.84 -0.05 2.19 0.58 1.68 0.44 -9.05 -5.51 0.01 -6.13 Uruguay 1.36 0.30 1.45 0.38 -0.03 1.05 0.17 0.85 0.17 -9.05 -5.51 0.01 -6.13 Venezuela (Bolivarian Republic of) 1.98 0.55 2.14 0.68 -0.04 1.85 0.44 1.48 0.37 -10.75 -5.43 0 -6.25 Bolivia (Plurinational State of), Ecuador 2.72 0.67 2.90 0.82 -0.06 2.53 0.56 1.89 0.43 -7.02 -3.69 0 -3.63 Rof Sam. 2.47 0.85 2.67 1.03 -0.06 2.63 0.78 1.94 0.54 -10.58 -6.27 0.15 -6.6 Central America 1.77 0.57 1.88 0.67 -0.04 1.82 0.50 1.35 0.35 -5.74 -2.89 0 -2.98 The Caribbean 1.52 0.74 1.67 0.87 -0.04 2.07 0.79 1.49 0.52 -30.40 -22.59 0.2 -24.57 ROW 1.08 0.42 1.19 0.52 -0.03 1.16 0.36 1.00 0.31 0.95 0.27 0 -5.86 Source: Authors based on GTAP-E simulations. Climate change and reduction of CO2 emissions… Argentina (Percentages) No Trade Emissions Trading World Trade Region kyontr1a USA kyontr1b kyontr2a kyontr2b kyotr0 kyotr1c kyotr2a kyotr3a kyotr3b kyotrLA1 kyotrLA2 kyowtr1 kyowtr2 -20.78 0.41 -20.78 0.48 0.37 -12.03 0.29 -10.25 0.22 -11.01 0.27 0.23 -8.37 EU 15 -5.37 -5.37 -5.37 -5.37 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 Japan -11.8 -11.8 -11.8 -11.8 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 RoAI -15.89 -15.89 -15.89 -15.89 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 EU 12 1.54 0.95 1.63 1.04 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 EUSTAI 0.98 0.58 1.06 0.65 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 EEFSU 1.99 0.94 2.11 1.05 0.37 -12.03 -5.65 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 China 0.63 0.28 -5.00 -5.00 -0.02 0.69 0.23 -10.25 -5.41 0.46 0.14 0.23 -8.37 India 0.09 -0.32 -5.00 -5.00 0.00 0.17 -0.08 -10.25 -5.41 0.22 -0.03 0.23 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 9 CHANGE IN EMISSIONS QUOTA -8.37 0.99 -5.00 -5.00 -0.05 2.07 0.86 -10.25 -5.41 1.42 0.53 0.23 -8.37 1.26 0.44 1.34 0.51 -0.03 1.39 0.41 1.04 0.29 1.16 0.32 0.23 -8.37 Argentina 1.02 0.36 1.15 0.48 -0.03 1.13 0.35 0.91 0.27 -11.01 -4.87 0.23 -8.37 Brazil 1.90 0.63 -5.00 -5.00 -0.04 1.90 0.52 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 Chile 0.39 0.22 0.44 0.27 -0.01 0.37 0.12 0.33 0.11 -11.01 -4.87 0.23 -8.37 Colombia 2.67 0.66 2.83 0.79 -0.06 2.43 0.54 1.76 0.39 -11.01 -4.87 0.23 -8.37 Mexico 1.43 0.34 -5.00 -5.00 -0.03 1.28 0.27 -10.25 -5.41 -11.01 -4.87 0.23 -8.37 Peru 2.20 0.69 2.37 0.84 -0.05 2.19 0.58 1.68 0.44 -11.01 -4.87 0.23 -8.37 Uruguay 1.36 0.30 1.45 0.38 -0.03 1.05 0.17 0.85 0.17 -11.01 -4.87 0.23 -8.37 Venezuela (Bolivarian Republic of) 1.98 0.55 2.14 0.68 -0.04 1.85 0.44 1.48 0.37 -11.01 -4.87 0.23 -8.37 Bolivia (Plurinational State of), Ecuador 2.72 0.67 2.90 0.82 -0.06 2.53 0.56 1.89 0.43 -11.01 -4.87 0.23 -8.37 Rof Sam. 2.47 0.85 2.67 1.03 -0.06 2.63 0.78 1.94 0.54 -11.01 -4.87 0.23 -8.37 Central America 1.77 0.57 1.88 0.67 -0.04 1.82 0.5 1.35 0.35 -11.01 -4.87 0.23 -8.37 The Caribbean 1.52 0.74 1.67 0.87 -0.04 2.07 0.79 1.49 0.52 -11.01 -4.87 0.23 -8.37 ROW 1.08 0.42 1.19 0.52 -0.03 1.16 0.36 1.00 0.31 0.95 0.27 0.23 -8.37 Source: Authors based on GTAP-E simulations. Note: For emissions trading scenarios. Numbers in italics represent the change in emissions within the trading block as a whole. not the change for individual countries. Climate change and reduction of CO2 emissions… 1.73 Energy Exp 29 South Africa (Dollars per Ton) No Trade Emissions Trading World Trade Region kyontr1a USA kyontr1b kyontr2a kyontr2b kyotr0 kyotr1c kyotr2a kyotr3a kyotr3b kyotrLA1 kyotrLA2 kyowtr1 kyowtr2 22.40 0 22.48 0 0 14.74 0 8.66 0 13.31 0 0 7.35 EU 15 9.72 8.11 9.88 8.26 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 Japan 36.15 34.03 36.39 34.25 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 RoAI 21.12 19.63 21.25 19.75 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 EU 12 0 0 0 0 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 EUSTAI 0 0 0 0 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 EEFSU 0 0 0 0 0 14.74 7.05 8.66 3.51 13.31 5.7 0 7.35 China 0 0 1.63 1.53 0 0 0 8.66 3.51 0 0 0 7.35 India 0 0 0.89 0.78 0 0 0 8.66 3.51 0 0 0 7.35 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 10 CARBON TAX EQUIVALENT 7.35 0 4.16 3.70 0 0 0 8.66 3.51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7.35 Argentina 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Brazil 0 0 8.04 6.57 0 0 0 8.66 3.51 13.31 5.7 0 7.35 Chile 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Colombia 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Mexico 0 0 9.02 7.68 0 0 0 8.66 3.51 13.31 5.7 0 7.35 Peru 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Uruguay 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Venezuela (Bolivarian Republic of) 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Bolivia (Plurinational State of), Ecuador 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Rof Sam. 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 Central America 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 The Caribbean 0 0 0 0 0 0 0 0 0 13.31 5.7 0 7.35 ROW 0 0 0 0 0 0 0 0 0 0 0 0 7.35 Source: Authors based on GTAP-Esimulations Note: For emission strading scenarios. Carbon tax equivalents are the same among trading block partners. Climate change and reduction of CO2 emissions… 0 Energy Exp 30 30 South Africa (Percentages) No Trade Emissions Trading World Trade Region kyontr1a kyontr1b kyontr2a USA -0.17 0 -0.17 kyontr2b 0 kyotr0 0 kyotr1c -0.09 kyotr2a 0 kyotr3a -0.04 kyotr3b 0 kyotrLA1 -0.08 kyotrLA2 0 kyowtr1 0 kyowtr2 -0.03 EU 15 -0.03 -0.07 -0.02 -0.07 0 -0.09 -0.06 -0.03 -0.02 -0.07 -0.04 0 -0.01 Japan -0.21 -0.21 -0.21 -0.21 0 -0.06 -0.03 -0.03 -0.01 -0.05 -0.03 0 -0.02 RoAI -0.28 -0.28 -0.27 -0.28 0 -0.17 -0.08 -0.08 -0.04 -0.15 -0.06 0 -0.06 EU 12 0.04 0.01 0.04 0.02 0 -0.25 -0.1 -0.12 -0.04 -0.21 -0.07 0 -0.09 EUSTAI -0.05 -0.02 -0.06 -0.02 0 -0.76 -0.26 -0.36 -0.11 -0.67 -0.2 0 -0.31 EEFSU 0.22 0.08 0.24 0.09 0.01 -0.97 -0.49 -0.52 -0.22 -0.85 -0.37 0 -0.4 China 0.01 0 -0.03 -0.04 0 0.01 0 -0.31 -0.1 0.01 0 0 -0.25 India 0.06 0.02 0.05 0.01 0 0.06 0.01 -0.17 -0.06 0.06 0.01 0 -0.13 South Africa 0.07 0.03 -0.05 -0.08 0 0.07 0.02 -0.26 -0.09 0.04 0.01 0 -0.2 Energy Exp CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 11 CHANGE IN GDP 31 0 -0.01 0 0 0 0 0 0 0 0 0 -0.11 0.02 0 0.02 0 0 0.01 0 0.01 0 -0.09 -0.04 0 -0.04 Brazil 0.02 0.01 -0.05 -0.05 0 0.02 0.01 -0.06 -0.02 -0.1 -0.04 0 -0.05 Chile 0.05 0.02 0.06 0.03 0 0.05 0.02 0.05 0.01 -0.08 -0.04 0 -0.03 Colombia 0.02 0 0.02 0 0 0.01 0 0.01 0 -0.15 -0.06 0 -0.08 Mexico 0.01 0 -0.02 -0.03 0 0.01 0 -0.03 -0.01 -0.05 -0.02 0 -0.02 Peru 0.06 0.02 0.06 0.03 0 0.06 0.02 0.04 0.01 -0.08 -0.04 0 -0.03 Uruguay 0.02 0 0.02 0.01 0 0.02 0.01 0.02 0 -0.08 -0.04 0 -0.03 Venezuela (Bolivarian Republic of) -0.05 -0.01 -0.05 -0.01 0 -0.04 -0.01 -0.04 -0.01 -0.22 -0.09 0 -0.08 Bolivia (Plurinational State of), Ecuador 0.05 0.01 0.05 0.01 0 0.05 0.01 0.03 0.01 0.04 0.02 0 -0.1 Rof Sam. 0.06 0.04 0.07 0.05 0 0.09 0.04 0.06 0.02 -0.05 -0.02 0 0.03 Central America 0 0 0 0 0 0 0 0 0 -0.14 -0.06 0 -0.03 The Caribbean 0.02 0 0.02 0 0 0.01 0 0.01 0 0.02 0.01 0 -0.07 ROW 0.02 0 0.02 0.01 0 0.02 0.01 0.01 0 -0.15 -0.04 0 -0.05 Source: Authors based on GTAP-Esimulations. Climate change and reduction of CO2 emissions… -0.01 Argentina (Millions of dollars) No Trade Emissions Trading World Trade Region kyontr1a USA -12 317 kyontr1b 570 kyontr2a -12 136 kyontr2b 815 kyotr0 kyotr1c 378 -11 092 kyotr2a kyotr3a 681 -7 939 kyotr3b 608 kyotrLA1 kyotrLA2 kyowtr1 kyowtr2 -10 446 745 3 -6 623 EU 15 1 590 -3 925 2 111 -3 427 20 -537 -2 817 1 054 -812 -188 -1 989 -1 2 343 Japan -5 286 -7 053 -5 114 -6 888 11 -769 -1 184 156 -335 -534 -829 0 654 RoAI -4 961 -4 264 -5 026 -4 332 119 -4 797 -2 545 -3 083 -1 356 -4 602 -2 194 1 -2 992 372 126 399 151 -102 1.458 403 716 157 1248 294 -1 606 EUSTAI -1 692 -715 -1 774 -797 -404 227 -180 -674 -334 -374 -454 -4 -1 204 EEFSU 91 30 97 36 -11 -52 -82 -58 -46 -54 -67 0 -47 China 258 -129 -171 -527 -5 196 -41 547 -550 215 -2 0 220 India 838 212 815 193 -19 778 178 1 428 139 771 189 0 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 12 WELFARE CHANGE 1138 EU 12 32 South Africa 82 29 22 -24 -2 100 21 89 -25 25 -8 0 -100 Energy Exp -10 067 -3 648 -10 648 -4 209 244 -10 519 -3 163 -7 964 -2 255 -9 825 -2 858 4 -8 065 -138 -46 -164 -69 3 -140 -42 -125 -40 -325 -135 0 -244 Argentina Brazil Colombia Mexico Bolivia (Plurinational State of), Ecuador Rof Sam Energy Imp. LAC 54 -16 -110 -5 163 26 -89 -82 32 -66 0 -149 -75 -307 -90 7 -263 -62 -196 -46 -312 -93 0 -238 -861 -176 -1 110 -376 16 -709 -132 -700 -204 -549 -142 0 -673 -1 187 -257 -1 260 -322 25 -1 070 -223 -838 -189 -884 -192 0 -789 -122 -31 -133 -41 3 -116 -28 -92 -23 -141 -44 0 -113 59 39 61 41 -2 89 38 58 21 87 34 0 54 200 81 224 102 -5 225 71 184 55 153 27 0 97 Central america 36 1 36 1 -1 34 4 23 2 51 12 0 24 The Caribbean 141 27 154 38 -3 114 18 94 18 638 171 0 308 ROW TOTAL 2 233 431 2 361 556 -59 2 413 603 1 726 419 2 362 626 -1 1 944 -30 819 -18 718 -31 579 -19 278 208 -24 267 -8 454 -15 683 -4 876 -22 650 -6 974 2 -13 847 Source: Authors based on GTAP – E simulations. Climate change and reduction of CO2 emissions… Venezuela (Bolivarian Republic of)) 201 -291 (Millions of dollars) Emissions Trading World Trade Region kyotr0 kyotr1c 361 -5 262 kyotr2a kyotr3a kyotr3b 0 -5 906 0 EU 15 51 1 220 Japan 36 -988 -159 -120 -338 -631 -761 -365 RoAI 49 -708 -720 -813 -473 EU 12 -77 1 430 416 576 EUSTAI EEFSU -410 4 087 1 043 -11 170 46 China 0 0 India 0 South Africa Energy Exp USA kyotrLA1 kyotrLA2 kyowtr1 kyowtr2 33 3 -5 621 826 -284 0 -293 -955 -542 0 -683 -805 -659 0 -784 117 1 201 284 -1 425 1 484 265 3 383 689 -4 1 075 63 12 140 30 0 44 0 3 624 543 0 0 0 2 575 0 0 1 627 295 0 0 0 1 213 0 0 0 174 3 0 0 0 98 0 0 0 0 0 0 0 0 846 Argentina 0 0 0 0 0 102 21 0 31 Brazil 0 0 0 24 -22 332 73 0 0 Colombia 0 0 0 0 0 99 26 0 37 Mexico 0 0 0 8 -36 65 14 0 20 Venezuela (Bolivarian Republic of) 0 0 0 0 0 415 82 0 -18 Bolivia (Plurinational State of), Ecuador 0 0 0 0 0 218 47 0 70 Rof Sam. 0 0 0 0 0 28 6 0 8 Energy Imp LAC 0 0 0 0 0 7 2 0 2 Central America 0 0 0 0 0 28 6 0 8 The Caribbean 0 0 0 0 0 631 202 0 282 ROW 0 0 0 0 0 0 0 0 653 TOTAL 0 -50 -6 -21 -1 -34 -3 0 -11 Climate change and reduction of CO2 emissions… 0 Source: Authors based on GTAP – E simulations. -5 749 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 TABLE 13 WELFARE CHANGE FROM CARBON TRADING CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… The next four scenarios consider the participation of developing countries in carbon trading. The first two consider the participation of China, India, Brazil, Mexico and South Africa (CIMBSA), while the last two consider the participation of Latin American and Caribbean countries. The results show that the participation of developing countries reduces the cost of the tax equivalent. When CIMBSA countries are included, the carbon tax equivalent is reduced by almost half, whereas the carbon tax equivalent is reduced by about $1 per ton when Latin American countries participate. This may be indicative of the weight that Latin American countries have relative to other developing countries. Also, there is the same effect on welfare, where welfare changes are relatively higher and positive with the participation of developing countries. An important source of positive welfare changes comes from carbon trading, where China and India have overall positive welfare changes since they capture a large proportion of the market given their low cost in reducing emissions. As before, when the US does not reduce emissions and does not participate in emissions trading, welfare gains are reduced as the size of the carbon market shrinks. These results are consistent with Springer (2003) and Zhang (2004). Springer shows that a common finding of all studies surveyed is that emission trading lowers the cost of reaching the commitments of the Kyoto Protocol. With global emissions trading, costs are lower and the market volume is smaller than under a scenario where only countries with quantified emission targets (Annex I countries) trade. At the same time, when all greenhouse gasses in the analysis are included, it costs and permit prices decreases, relative to models that only consider CO2 emissions. Thus, any limitation on participation would increase abatement costs. Springer (2003) also shows that the U.S. withdrawal from the Kyoto Protocol has important implications on the effectiveness of the Kyoto Protocol and the emissions trading scheme that it implements. In this case, U.S. withdrawal implies that permit prices approach zero. Without U.S. participation, permit demand is similar to “hot air” from the former Soviet Union. This allows these countries to increase their revenue from selling emission permits by restricting permit supply, which raises the price of tradable emissions permits. On the other hand, Zhang (2004) explores the expansion of the Kyoto Protocol to developing countries, especially China. Zhang’s findings are consistent with the results of this paper, where broad participation of developing countries reduces Annex I countries’ compliance costs, and gains to OECD countries increase. At the same time, developing countries benefit from this scheme, as they gain additional financial resources and reduce their baseline carbon emissions. However, gains from FSU countries decreases as participation from developing countries broadens, which might have important implications on rules and regulations to admit new countries into emissions trading. C. Global emissions trading Under global emissions trading, in the first scenario (with Annex I countries’ reductions and “hot air” from FSU countries), the change in emissions is close to zero, and at the block level, emissions rise only by 0.23 percent, with an equivalent carbon tax of zero. Given these small changes in emissions, there is almost no change in GDP and welfare. When we compare this scenario with the other two scenarios with “hot air” (kyontr1a and kyotr0), we observe that from welfare losses in the Autarky case, emissions trading reduces any negative economic impact that reduction in emissions may have on developed and developing countries. Annex I countries are able to reduce their emissions, without hampering economic growth or welfare, which reflects the effectiveness of a global trading system. As developing countries (CIMBSA) reduce their emissions and we eliminate “hot air”, not accounting for positive emissions from FSU countries causes other countries around the world to reduce their emissions. This shows the importance of the assumption of “hot air” in modeling carbon markets, as countries, especially non-FSU Annex I countries, could meet their reduction commitments by trading with FSU countries. As this mechanism is eliminated, countries around the world have to reduce their emissions as a group by almost 9 percent (see table 9). 34 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Both developed and developing countries reduce their emissions between 3 and 25 percent. Within developing countries, some major players such us China (17%), India (22%) and South Africa (9%) reduce their emissions at the largest relative terms. Among Latin American countries, all countries reduce their emissions between 3 and 6 percent (except for the Caribbean region). For welfare, emissions reduction causes welfare losses in Annex I and energy exporting countries. Developing countries such as China and India, as well as Annex I countries such as Japan and EU15 show welfare gains. However, it is important to note that for China and India, carbon trading becomes a major source of welfare gains (see table 13). China reports a 2.6 billion welfare gain, while India reports a 1.2 billion gain. As discussed previously, the cost to reduce emissions by China and India is relatively small compared to other developing countries, which might explain why they capture most of the welfare gains from carbon trading. For Latin American countries, such as Mexico and Brazil. welfare gains from carbon trading are small and do not make up for possible welfare losses from other sources such as terms of trade or resource allocation 35 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… III. Conclusions and policy implications In this paper, we have simulated and analyzed different trading structures of CO2 emissions as well as their impacts on the economy and welfare of both developed and developing countries. The results show several stylized facts that are consistent with previous research. First, the participation of the United States is crucial in reducing emissions around the world, as well as in minimizing the costs of emissions reduction. It is crucial that any carbon trading market include the Unites States, since it is the second major emitting country after China. Second, the role of the Former Soviet Union countries and the amount of “hot air” from these countries are also an important driver and emphasize the importance of these countries in the emissions trading market. Third, the participation of developing countries is crucial to reducing abatement costs of CO2 emissions. This effect is magnified, as some of these developing countries also reduce emissions, thus further lowering these abatement costs. Economic impacts on developing countries, always very small, differ whether we focus on energy exporting countries or energy importing countries. These results are also influenced by the participation of the United States in reducing emissions. For energy exporting countries, there are welfare losses that are mostly driven by a loss in the terms of trade, as Annex I countries reduce their emissions and cut their consumption of energy commodities (coal. gas, crude oil, and petroleum products). This affects the terms of trade of those energy exporting countries, as the price of exports of energy commodities fall relative to those of imports. For Latin American energy exporting countries such as Mexico, Venezuela, Colombia and Argentina, the terms of trade impact is most notorious, given the close relationship of the United States as a trading partner with the region. 37 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… The results highlight the major role that developing countries can play in the carbon emissions market and the cost of emissions reduction. However, the study also finds that for some developing countries that are energy exporters, the impacts of reduction of carbon emissions may be negative. ceteris paribus, as demand for energy commodities may drecrease. However, it is also important to point out that this paper has not considered the Clean Development Mechanism, which may reduce some of these negative impacts for developing countries. Finally, should be note that dynamic effects are not considered in this assessment. Some of the policy implications that we can conclude from this analysis are that developing countries should consider three things: (i) the potentially negative short term impacts on their economies of any reduction in emissions from industrialized nations and the coping mechanisms to reduce some of these negative impacts; (ii) the role that they can play in international carbon trade markets, as they negotiate in the COPs of the UNFCCC annually; and (iii) the potential role and benefits to developing countries of other mechanisms envisioned in the Kyoto Protocol (and not considered in this paper) . 38 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Bibliography Anger, N. 2008. Emissions trading beyond Europe: Linking schemes in a post-Kyoto world. Energy Economics, 30(2008): 2028-2049. Beckman.,J.F., and T.W. Hertel. 2009. Why Previous Estimates of the Cost of Climate Mitigation are Likely Too Low. 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National greenhouse gas inventory data for the period 1990–2005 http://unfccc.int/resource/docs/2007/sbi/eng/30.pdf 40 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Annex 41 Closure and shock modifications to GTAP-E model for all scenarios considered Kyoto without emissions trading - with USA swap RCTAXB = NCTAXB; swap pempb(USA)= NCTAXB(USA); swap pempb(EU15)= NCTAXB(EU15); swap pempb(Japan)= NCTAXB(Japan); swap pempb(RoA1)= NCTAXB(RoA1); shock gco2q(China) = -5; shock gco2q(India) = -5; shock gco2q(SouthAfrica) = -5; shock gco2q(Brazil) = -5; shock gco2q(Mexico) = -5; kyotr0 - Kyoto with annex 1 emissions trading (FSU swap / FSU + emissions) swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; Kyoto without emissions trading - without USA Same as previous scenarios. but without line referring to USA. both in closure and shocks. Kyoto without emissions trading - with USA and 5% CIMBSA Same as first scenarios. plus lines for China. India. Mexico. Brazil and South Africa. both for closure and shocks. ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 48.81; shock gco2q(EUSTAN1) = 64.31; shock gco2q(EEFSU) = 48.81; kyotr1c - Kyoto with annex 1 emissions trading with USA - all swaped and FSU = 0 swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); SAME AS SCENEARIO 1. PLUS: swap pempb(China) = NCTAXB(China); swap pempb(India) = NCTAXB(India); swap pempb(SouthAfrica) = NCTAXB(SouthAfrica); swap pempb(Brazil) = NCTAXB(Brazil); swap pempb(Mexico) = NCTAXB(Mexico); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); swap gco2q(China) = pemp(China); swap gco2q(India) = pemp(India); swap gco2q(SouthAfrica) = pemp(SouthAfrica); swap gco2q(Brazil) = pemp(Brazil); swap gco2q(Mexico) = pemp(Mexico); ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; ! shocks with reduction for CIBMSA -5% shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; !Shock FSU and Eastern Europe to zero shock gco2q(EU12) = 0; 42 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(Mexico) = -5; kyotr3b - Kyoto with annex 1 emissions trading wihout USA -5% CIMBSA; swap RCTAXB = NCTAXB; kyotr2a - Kyoto with annex 1 emissions trading without USA (FSU swap / no FSU emissions / FSU target =0); swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); swap pempb(EMTR)= NCTAXB(EMTR); !swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); ! shocks shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; swap gco2q(China) = pemp(China); swap gco2q(India) = pemp(India); swap gco2q(SouthAfrica) = pemp(SouthAfrica); swap gco2q(Brazil) = pemp(Brazil); swap gco2q(Mexico) = pemp(Mexico); ! shocks with reduction for CIBMSA -5% shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; kyotr3a - Kyoto with annex 1 emissions trading with USA CIMBSA -5%; swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(China) = -5; shock gco2q(India) = -5; shock gco2q(SouthAfrica) = -5; shock gco2q(Brazil) = -5; shock gco2q(Mexico) = -5; swap gco2q(China) = pemp(China); swap gco2q(India) = pemp(India); swap gco2q(SouthAfrica) = pemp(SouthAfrica); swap gco2q(Brazil) = pemp(Brazil); swap gco2q(Mexico) = pemp(Mexico); kyotrLA1 - Kyoto with annex 1 emissions trading with USA + LAC; swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(USA) = pemp(USA); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); ! shocks with reduction for CIBMSA -5% shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(China) = -5; shock gco2q(India) = -5; swap gco2q(Argentina) = pemp(Argentina); swap gco2q(Brazil) = pemp(Brazil); swap gco2q(Chile) = pemp(Chile); swap gco2q(Colombia) = pemp(Colombia); 43 shock gco2q(SouthAfrica) = -5; shock gco2q(Brazil) = -5; swap gco2q(Mexico) = pemp(Mexico); swap gco2q(Peru) = pemp(Peru); swap gco2q(Uruguay) = pemp(Uruguay); swap gco2q(Venezuela) = pemp(Venezuela); swap gco2q(BolEcu) = pemp(BolEcu); swap gco2q(RestofSA) = pemp(RestofSA); swap gco2q(CentrAmer) = pemp(CentrAmer); swap gco2q(Caribe) = pemp(Caribe); ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; ! shocks shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(Argentina) = 0.0; shock gco2q(Brazil) = 0.0; shock gco2q(Chile) = 0.0; shock gco2q(Colombia) = 0.0; shock gco2q(Mexico) = 0.0; shock gco2q(Peru) = 0.0; shock gco2q(Uruguay) = 0.0; shock gco2q(Venezuela) = 0.0; shock gco2q(Caribe) = 0.0; shock gco2q(BolEcu) = 0.0; shock gco2q(CentrAmer) = 0.0; shock gco2q(RestofSA) = 0.0; shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(Argentina) = 0.0; shock gco2q(Brazil) = 0.0; shock gco2q(Chile) = 0.0; shock gco2q(Colombia) = 0.0; shock gco2q(Mexico) = 0.0; shock gco2q(Peru) = 0.0; shock gco2q(Uruguay) = 0.0; shock gco2q(Venezuela) = 0.0; shock gco2q(Caribe) = 0.0; shock gco2q(BolEcu) = 0.0; shock gco2q(CentrAmer) = 0.0; shock gco2q(RestofSA) = 0.0; kyowtr0 - Kyoto with worldwide emissions trading with positive emissions in FSU; swap RCTAXB = NCTAXB; swap pempb(World)= NCTAXB(World); swap gco2q= pemp; ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 48.81; shock gco2q(EUSTAN1) = 64.31; shock gco2q(EEFSU) = 48.81; shock gco2q(China) = 0.0; shock gco2q(India) = 0.0; shock gco2q(SouthAfrica) = 0.0; shock gco2q(EEx) = 0.0; shock gco2q(Argentina) = 0.0; shock gco2q(Brazil) = 0.0; shock gco2q(Chile) = 0.0; shock gco2q(Colombia) = 0.0; shock gco2q(Mexico) = 0.0; shock gco2q(Peru) = 0.0; shock gco2q(Uruguay) = 0.0; shock gco2q(Venezuela) = 0.0; shock gco2q(BolEcu) = 0.0; shock gco2q(RestofSA) = 0.0; shock gco2q(CentrAmer) = 0.0; kyotrLA2 - Kyoto with annex 1 emissions trading without USA + LAC; swap RCTAXB = NCTAXB; swap pempb(EMTR)= NCTAXB(EMTR); swap gco2q(EU15) = pemp(EU15); swap gco2q(Japan) = pemp(Japan); swap gco2q(RoA1) = pemp(RoA1); swap gco2q(EU12) = pemp(EU12); swap gco2q(EUSTAN1) = pemp(EUSTAN1); swap gco2q(EEFSU) = pemp(EEFSU); swap gco2q(Argentina) = pemp(Argentina); swap gco2q(Brazil) = pemp(Brazil); swap gco2q(Chile) = pemp(Chile); swap gco2q(Colombia) = pemp(Colombia); swap gco2q(Mexico) = pemp(Mexico); swap gco2q(Peru) = pemp(Peru); swap gco2q(Uruguay) = pemp(Uruguay); swap gco2q(Venezuela) = pemp(Venezuela); swap gco2q(BolEcu) = pemp(BolEcu); 44 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… swap gco2q(RestofSA) = pemp(RestofSA); swap gco2q(CentrAmer) = pemp(CentrAmer); swap gco2q(Caribe) = pemp(Caribe); shock gco2q(Caribe) = 0.0; shock gco2q(ROW) = 0.0; kyowtr1 - Kyoto with worldwide emissions trading FSU=0 CIMBSA -5%; swap RCTAXB = NCTAXB; swap pempb(World)= NCTAXB(World); swap gco2q= pemp; ! shocks shock gco2q(USA) = -20.78; shock gco2q(EU15) = -5.37; shock gco2q(Japan) = -11.80; shock gco2q(RoA1) = -15.89; shock gco2q(EU12) = 0; shock gco2q(EUSTAN1) = 0; shock gco2q(EEFSU) = 0; shock gco2q(China) = -5; shock gco2q(India) = -5; shock gco2q(SouthAfrica) = -5; shock gco2q(EEx) = 0.0; shock gco2q(Argentina) = 0.0; shock gco2q(Brazil) = -5; shock gco2q(Chile) = 0.0; shock gco2q(Colombia) = 0.0; shock gco2q(Mexico) = -5; shock gco2q(Peru) = 0.0; shock gco2q(Uruguay) = 0.0; shock gco2q(Venezuela) = 0.0; shock gco2q(BolEcu) = 0.0; shock gco2q(RestofSA) = 0.0; shock gco2q(CentrAmer) = 0.0; shock gco2q(Caribe) = 0.0; shock gco2q(Row) = 0.0; 45 CEPAL - Serie Medio Ambiente y Desarrollo N° 150 Climate change and reduction of CO2 emissions… Serie medio ambiente y desarrollo Números publicados Un listado completo así como los archivos pdf están disponibles en www.cepal.org/publicaciones 150. Climate change and reduction of CO2 emissions: the role of developing countries in carbon trade markets. Carlos Ludeña, Carlos de Miguel, Andres Schuschny (LC/L.3608) diciembre 2012. Email: carlos.demiguel@cepal.org. Email: erecc.lac@cepal.org. 149. Disponibilidad futura de los recursos hídricos frente a escenarios de cambio climático en Chile. Ximena Vargas, Álvaro Ayala, Rodrigo Meza, Eduardo Rubio (LC/L. 3592), diciembre 2012. Email: carlos.demiguel@cepal.org. erecc.lac@cepal.org. 148. Efecto del cambio climático en la salud pública en Colombia: estudio de caso malaria y dengue. Viviana Cerón y Salua Osorio Mrad (LC/L.3587), marzo 2013. Email: carlos.demiguel@cepal.org. Email: erecc.lac@cepal.org. 147. Desarrollo de una función agroclimática para estimar productividad de los cultivos agrícolas en Colombia. J. Francisco Boshell V. (LC/L.3586), marzo 2013. Email: carlos.demiguel@cepal.org. Email: erecc.lac@cepal.org. 146. Panorama del cambio climático en Colombia. Javier Blanco (LC/L.3585) marzo 2013. Email: carlos.demiguel@cepal.org. Email: erecc.lac@cepal.org. 145. Análisis de la vulnerabilidad del sector hidroeléctrico frente a escenarios futuros de cambio climático en Chile. James McPhee Eduardo Rubio. Rodrigo Meza. Álvaro Ayala (LC/L.145). diciembre 2012. Email: carlos.demiguel@cepal.org.. Email: erecc.lac@cepal.org. 144. Políticas Fiscales. impactos energéticos y emisiones de CO2 en Chile. Carlos de Miguel. Raúl O’Ryan. Mauricio Pereira y Bruno Carriquiry (LC/L.3434). diciembre 2011. Email: carlos.demiguel@cepal.org. 143. Financiamiento para el logro de los Objetivos de Desarrollo del Milenio en un contexto de crisis: Indicadores para Chile. Raúl O’Ryan. Mauricio Pereira y Carlos de Miguel (LC/L.3405). noviembre 2011. Email: carlos.demiguel@cepal.org. 142. Estimaciones de gasto social en vivienda y desarrollo urbano para algunos países de América Latina y el Caribe. Raquel Szalachman. María Paz Collinao. (LC/L.3169-P) Nº de venta: S.09.II.G.142 marzo 2010. Email: Raquel.szalachman@cepal.org 141. Gasto social en vivienda y desarrollo urbano. Raquel Szalachman. María Paz Collinao. (LC/L.3149-P). Nº de venta: S.09.II.G.122. diciembre 2009. Email: Raquel.szalachman@cepal.org 140. Síndrome holandés. regalías mineras y políticas de gobierno para un país dependiente de recursos naturales: el cobre en Chile. Mauricio Pereira. Andrés Ulloa. Raúl O’Ryan. Carlos de Miguel (LC/L.3139-P). Nº de venta: S.09.II.G.112. diciembre 2009. Email: carlos.demiguel@cepal.org 139. Desenvolvimento redoviario e o impacto fiscal do sistema de concesões em Brasil. Ana Paula H.Higa (LC/L.3120P). Nº de venta: P.09.11.G.99. octubre 2009. Email: Ricardo.jordan@cepal.org 138. Trade and Sustainable Development: Spatial Distribution of Trade Policies Impacts on Agriculture. Sergio Ludeña. Andrés Schuschny. Carlos de Miguel y José Durán. (LC/L.3048-P). Nº de venta: E.09.II.G.50 (US$ 10.00). junio 2009. Email: carlos.demiguel@cepal.org 137. Consideraciones ambientales en torno a los biocombustibles líquidos. José Javier Gómez. Joseluis Samaniego. Mariana Antonissen (LC/L.2915-P). Nº de venta: S.07.II.G.49 (US$ 10.00). julio 2008. Email: jose.gomez@cepal.org • El lector interesado en adquirir números anteriores de esta serie puede solicitarlos dirigiendo su correspondencia a la Unidad de Distribución. CEPAL. Casilla 179-D. Santiago. Chile. Fax (562) 210 2069. correo electrónico: publications@cepal.org. Nombre: ............................................................................................................................... Actividad: ............................................................................................................................ Dirección: ............................................................................................................................ Código postal, ciudad, país: ................................................................................................. Tel.: ............................ Fax:...................................... E.mail: ................................................ 47 150 ENVIRONMENT AND DEVELOPMENT ECONOMIC COMMISSION FOR LATIN AMERICA AND THE CARIBBEAN COMISIÓN ECONÓMICA PARA AMÉRICA LATINA Y EL CARIBE www.eclac.org