Biofuels and climate change mitigation : a CGE analysis incorporating land-use change

The question of whether biofuels help mitigate climate change has attracted much debate in the literature. Using a global computable general equilibrium model that explicitly represents land-use change impacts due to the expansion of biofuels, this study attempts to shed some light on this question. The study shows that if biofuel mandates and targets currently announced by more than 40 countries around the world are implemented by 2020 using crop feedstocks, and if both forests and pasture lands are used to meet the new land demands for biofuel expansion, this would cause a net increase of greenhouse gas emissions released to the atmosphere until 2043, since the cumulative greenhouse gas emissions released through land-use change would exceed the reduction of emissions due to replacement of gasoline and diesel until then. However, if the use of forest lands is avoided by channeling only pasture lands to meet the demand for new lands, a net increase of cumulative greenhouse gas emissions would occur but would cease by 2021, only a year after the assumed full implementation of the mandates and targets. The study also shows, contrary to common perceptions, that the rate of deforestation does not increase with the rate of biofuel expansion; instead, the marginal rate of deforestation and corresponding land-use emissions decrease even if the production of biofuels increases.Climate Change Mitigation and Green House Gases,Climate Change Economics,Energy and Environment,Environment and Energy Efficiency,Climate Change and Environment

Is SAFTA trade creating or trade diverting?: A computable general equilibrium assessment with a focus on Sri Lanka

The Agreement on South Asian Free Trade Area (SAFTA) entered its second phase of implementation in 2008. The creation of a free trade area is expected to affect its participants—Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan, and Sri Lanka—very differently given their diversity in terms of size, income, and structure of trade and protection. Using the 2004 MAcMapHS6-v2 database on measures of applied protection at the HS6 level and MIRAGE, a computable general equilibrium global model, this study examines the effects of SAFTA on trade and net income in the region. The magnitude of the effects will depend on initial levels of protection in the region and whether the agreement is trade diverting or trade creating. An important component of the SAFTA agreement is the exemption of products (sensitive list) from the trade liberalization process. Because such exclusion can restrict significantly the benefits from the regional trade agreement, we simulate the effects of SAFTA with and without sensitive products. Our findings show that among South Asian countries, Sri Lanka gains the most from the agreement because it initially has relatively low tariffs and faces high tariffs in the region. Exempting sensitive products from the agreement limits gains from trade for the lower-middle-income members of SAFTA but may be welfare enhancing for the least developed economies.South Asian Free Trade Area (SAFTA), trade liberalization, Computable General Equilibrium (CGE) model, welfare, trade, applied protection, income, FTA, Markets, Globalization,

The effects of alternative free trade agreements on Peru: Evidence from a global computable general equilibrium model

"By using a global computable general equilibrium model, this report analyzes the impact of various pending free trade agreements for Peru. In December 2007, a Peru–United States free trade agreement (FTA) was finally ratified by the U.S. Congress, replacing the Andean Trade Promotion and Drug Eradication Act, which awarded Peru and other Andean countries nonreciprocal preferential tariffs. A Peru–European Union (EU27) FTA is also being negotiated in the context of Peru's participation in the integration of the Andean Community (CAN). Finally, as of October 2008 Peru is concluding negotiations for a free trade agreement with China, its third major trading partner after the United States and the EU27. Although these agreements are expected to improve market access, their impact on the economic welfare of the beneficiary countries is dependent on the countries' structure of current tariffs and trade and the extent to which the new agreements result in trade diversion versus trade creation. The analysis shows that specific features of Peru's trade and tariff structures make the country a better candidate for a South-South FTA with China than for North-South FTAs with the United States or the EU27." from authors' abstractWTO, Free Trade Agreement, trade liberalization, CGE Modeling,

Genetically modified food and international trade: The case of India, Bangladesh, Indonesia, and the Philippines

"Genetically modified (GM) food crops have the potential to raise agricultural productivity in Asian countries, but they are also associated with the risk of market access losses in sensitive importing countries. We study the potential effects of introducing GM food crops in Bangladesh, India, Indonesia, and the Philippines in the presence of trade-related regulations of GM food in major importers. We focus on GM field crops (rice, wheat, maize, soybeans, and cotton) resistant to biotic and abiotic stresses, such as drought-resistant rice, and use a multi-country, multi-sector computable general equilibrium model. We build on previous international simulation models by improving the representation of the productivity shocks associated with GM crops, and by using an improved representation of the world market, accounting for the effects of GM food labeling policies in major importers and the possibility of segregation for non-GM products going toward sensitive importing countries. The results of our simulations first show that the gains associated with the adoption of GM food crops largely exceed any type of potential trade losses these countries may incur. Adopting GM crops also allows net importing countries to greatly reduce their imports. Overall, we find that GM rice is bound to be the most advantageous crop for the four countries. Second, we find that segregation of non-GM crops can help reduce any potential trade loss for GM adopters, such as India, that want to keep export opportunities in sensitive countries, even with a 5 percent segregation cost. Lastly, we find that the opportunity cost of segregation is much larger for sensitive importing countries than for countries adopting new GM crops, which suggests that sensitive importers will have the incentive to invest in separate non-GM marketing channels if exporting countries like India decide to adopt GM food crops." from Authors' AbstractGenetically modified food, International trade, Developing countries, Segregation,

World oil price and biofuels : a general equilibrium analysis

The price of oil could play a significant role in influencing the expansion of biofuels. However, this issue has not been fully investigated yet in the literature. Using a global computable general equilibrium model, this study analyzes the impact of oil price on biofuel expansion, and subsequently, on food supply. The study shows that a 65 percent increase in oil price in 2020 from the 2009 level would increase the global biofuel penetration to 5.4 percent in 2020 from 2.4 percent in 2009. A doubling of oil price in 2020 from its baseline level, or a 230 percent increase from the 2009 level, would increase the global biofuel penetration in 2020 to 12.6 percent. The penetration of biofuels is highly sensitive to the substitution possibility between biofuels and their fossil fuel counterparts. The study also shows that aggregate agricultural output drops due to an oil price increase, but the drop is small in major biofuel producing countries as the expansion of biofuels would partially offset the negative impacts of the oil price increase on agricultural outputs. An increase in oil price would reduce global food supply through direct impacts as well as through diversion of food commodities and cropland toward the production of biofuels.Energy Production and Transportation,Climate Change Economics,Markets and Market Access,Renewable Energy,Food&Beverage Industry

Economic partnership agreements between the European Union and African, Caribbean, and Pacific Countries: What is at stake for Senegal

"In recent years the European Union has sought to transform its trading regime with the ACP countries by advocating reciprocal free trade agreements with them through Economic Partnership Agreements (EPAs). As a result, the EPA talks were launched in 2002 and were expected be completed by the end of 2007. Nevertheless, many African countries, including Senegal did not reach agreements with the European Union in 2007 amid rising concerns that such agreements do not represent the interests of developing countries. This policy shift from preferential trade to free trade would imply drastic changes for Senegal's economy, which currently enjoys relatively good access to European market (but also to the U.S. through the African Growth Opportunity Act) while applying a high domestic protection on all sources of imports. As a result, this type of reform would result in improved access to foreign markets only for the EU. Furthermore, the EPA implies a loss of tariff revenues from liberalization, which has been a key concern for ACP countries from the beginning of talks because they constitute a high level of public receipts there. Finally this kind of reform could lead to trade diversion in Senegal while creating not enough trade. Using the MIRAGE computable general equilibrium model the study examines the potential impact of Economic Partnership Agreements on ACP countries with a special focus on Senegal." from Author's AbstractEconomic partnership agreements, European Union, economic growth, Computable general equilibrium (CGE) modeling, trade, Markets, Globalization,

Under what conditions does a carbon tax on fossil fuels stimulate biofuels ?

A carbon tax is an efficient economic instrument to reduce emissions of carbon dioxide released from fossil fuel burning. Its impacts on production of renewable energy depend on how it is designed -- particularly in the context of the penetration of biofuels into the energy supply mix for road transportation. Using a multi-sector, multi-country computable general equilibrium model, this study shows first that a carbon tax with the entire tax revenue recycled to households through a lump-sum transfer does not stimulate biofuel production significantly, even at relatively high tax rates. This reflects the high cost of carbon dioxide abatement through biofuels substitution, relative to other energy substitution alternatives; in addition, the carbon tax will have negative economy-wide consequences that reduce total demand for all fuels. A combined carbon tax and biofuel subsidy policy, where part of the carbon tax revenue is used to finance a biofuel subsidy, would significantly stimulate market penetration of biofuels. Although the carbon tax and biofuel subsidy policy would cause higher loss in global economic output compared with the carbon tax with lump sum revenue redistribution, the incremental output loss is relatively small.Climate Change Mitigation and Green House Gases,Transport Economics Policy&Planning,Taxation&Subsidies,Environment and Energy Efficiency,Energy and Environment

The European Union is undermining prospects for a free trade agreement with Africa

The European Union’s insistence on Economic Partnership Agreements with individual countries, as its principal trade policy instrument for relations with Africa, undermines its support for the African Continental Free Trade Agreement (AfCFTA). This in turn weakens prospects for a continent-to-continent free trade area between Africa and the EU