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This study uses a computable general equilibrium model to analyze various policy scenarios for a carbon tax on greenhouse gas emissions from petroleum fuels and kerosene in Ethiopia. The carbon tax starts at USD 5 per ton of carbon dioxide in 2018 and rises to USD 30 per ton in 2030. Different scenarios examine the impacts with revenue recycling through a uniform sales tax reduction, reduction of labor income tax, reduction of business income tax, direct transfer back to households, and use by the government to reduce debt. Because petroleum fuels and kerosene are a relatively small part of the Ethiopian economy, the carbon tax has quite small impacts on overall economic activity while having a notable proportionate impact on greenhouse gas emissions from these energy sources, depending on the recycling scenario. The carbon tax can raise significant revenue-up to USD 800 million per year by 2030. The impacts on the poor through increased cost of living are not that large, since the share of the poor in total use of petroleum fuels and kerosene is small. In terms of income effects through employment changes, urban households tend to experience more impacts than rural households, but the results also depend on the household skill level and the revenue recycling scenario.
Carbon Tax --- CGE Model --- Computable General Equilibrium Model --- Distributional Impacts --- Environment --- Poverty Reduction --- Trade Policy
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This paper provides a forward-looking view of trade and its relevance for Lesotho's medium- and long-term development. It does this through computable general equilibrium analysis of potential impacts based on specific trade-related scenarios. The scenarios include the potential loss of American Growth and Opportunities Act preferences and preference erosion against competitors through, for example, a United States-Vietnam Free Trade Area. An immediate loss of American Growth and Opportunities Act preferences would have a significant economic impact that far exceeds that of a potential future United States-Vietnam Free Trade Area. If these preferences were suspended in 2018, Lesotho would face a loss of 1 percent in income by 2020, relative to the baseline, and exports of textiles and apparel would drop by 16 percent. The computable general equilibrium simulations stress the need to strengthen efforts to support structural transformation leading to diversification of export products and markets, improving backward and forward linkages, and lowering trade costs. The simulations also indicate that trade facilitation measures leading to an average decrease in trade costs of 2 percent per year would eliminate the negative consequences of the loss of American Growth and Opportunities Act preferences in terms of the loss of income. The changing external environment is likely to offer new opportunities to Lesotho's export industries in the medium term, including through regional integration under the Continental Free Trade Area.
AGOA --- American Growth and Opportunities Act --- CGE Model --- Computable General Equilibrium Model --- International Economics and Trade --- Trade Policy --- Trade Preferences
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Mali, a landlocked West African nation at the southern edge of the Sahara Desert, has introduced a program to produce biodiesel using jatropha curcas, a non-edible shrub widely available throughout the country by farmers for generations as a living fence for their gardens. The aim of the program is to partially substitute diesel, which is entirely supplied through imports, with domestic biodiesel produced from a feedstock that does not have any commercial value otherwise and thus has zero opportunity cost. This paper uses a computable general equilibrium model to investigate economy-wide and distributional impacts of large-scale jatropha production on different types of lands, and conversion of jatropha oil to biodiesel for domestic consumption. It assesses impacts on agricultural and other commodity markets, resource and factor markets, and international trade. The results are fed into a detailed household survey-based micro-simulation model to assess impacts on poverty and income distribution. The study finds that the expansion of jatropha farming would be beneficial in terms of both macroeconomic and distributional impacts as long as idle lands, which have been neither used for agriculture nor protected as forests, are utilized. However, if jatropha plantation is carried out on existing agriculture lands, the economy-wide impacts would be negative although it would still help reduce rural poverty.
Agriculture --- Biofuels --- Computable general equilibrium model --- Distributional analysis --- Economic Theory & Research --- Energy --- Environment --- Labor Policies --- Markets and Market Access --- Micro-simulation --- Renewable Energy --- Rural Poverty Reduction
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Access to infrastructure supports economic development through both capital accumulation and structural transformation. This paper investigates the links between investments in electricity, Internet, and road infrastructure, in isolation and bundled, and economic development in the Horn of Africa, a region that includes countries with different levels of infrastructure and economic development. Using data on the expansion of the road, electricity, and Internet networks over the past two decades, it provides reduced-form estimates of the impacts of infrastructure investments on the sectoral composition of employment. Bundled infrastructure investments cause different patterns of structural transformation than isolated infrastructure investments. The impact of bundled road and electricity investments on reducing the sectoral employment share in agriculture is found to be 2.5 times larger than the impact of roads alone. The paper then uses a spatial general equilibrium model to quantify the impacts of future regional Transport investments, bundled with electricity and trade facilitation measures, on economic development in countries in the Horn of Africa.
Electricity --- General Equilibrium Model --- Infrastructure --- Infrastructure Economics --- Infrastructure Economics and Finance --- Infrastructure Investment --- Internet Access --- Road Infrastructure --- Roads and Highways --- Structural Transformation --- Transport --- Transport Corridor
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In an economy with substantial informality, a carbon tax can produce fiscal co-benefits that improve economic performance in addition to reducing carbon dioxide emissions. If the carbon tax revenues are used to cut production or labor taxes on formal firms, particularly those not in the energy sector, the cost of imposing the carbon tax is reduced, and there may even be net economic benefits. These tax cuts can also provide an incentive for informal firms to move to formal parts of the economy. This study confirms these hypotheses using a computable general equilibrium model for Cote d'Ivoire. However, the scale and even the sign of overall economic impacts and formal-informal sectoral interactions are sensitive to the scheme and scale of revenue recycling. The largest fiscal co-benefits, in terms of gross domestic product and economic welfare gains, would occur when the entire carbon tax revenue, after keeping the government revenue neutral, is used to cut existing labor or production taxes for non-energy formal firms. Reducing the existing value-added tax also increases gross domestic product and economic welfare, but without reducing the informality. The study also shows that energy producers should be exempted from using the carbon tax revenues to cut their production or labor taxes; otherwise, carbon dioxide reduction decreases due to a rebound effect. Although a carbon tax with lump-sum transfers of revenues is progressive, it would be economically inefficient because of gross domestic product and welfare reduction and lack of incentives to encourage informal activities to move to the formal parts of the economy.
Carbon Policy and Trading --- Carbon Tax --- Climate Change Mitigation and Green House Gases --- Energy --- Environment --- Environmental Economics and Policies --- General Equilibrium Model --- Greenhouse Gas Emissions --- Informal Economy --- Informality --- Macroeconomics and Economic Growth --- Tax Revenue --- Taxation --- Taxation and Subsidies
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Should the China-U.S. trade agreement prompt relief because it averts a damaging trade war or concern because selective preferential access for the United States to China's markets breaks multilateral rules against discrimination? The answer depends on how China implements the agreement. Simulations from a computable general equilibrium model suggest that the United States and China would be better off under this "managed trade" agreement than if the trade war had escalated. However, compared with the policy status quo, the deal will make everyone worse off except the United States and its input-supplying neighbor, Mexico. Real incomes in the rest of world would decline by 0.16 percent and in China by 0.38 percent because of trade diversion. China can reverse those losses if, instead of granting the United States privileged entry, it opens its market for all trading partners. Global income would be 0.6 percent higher than under the managed trade scenario, and China's income would be nearly 0.5 percent higher. By creating a stronger incentive for China to open its markets to all, an exercise in bilateral mercantilism has the potential to become an instrument for multilateral liberalization.
Access to Markets --- Bilateral Mercantilism --- Computable General Equilibrium Model --- International Economics and Trade --- International Trade and Trade Rules --- Managed Trade --- Preferential Access --- Preferential Trade Agreement --- Trade Diversion --- Trade Liberalization --- Trade Policy --- Trade War
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Recent global initiatives on debt relief and development assistance call for increasing aid for trade to the poorest countries. The paper applies a multi-country computable general equilibrium model to measure the effectiveness of alternative aid for trade categories. The findings show that aid for trade policies expand trade and alleviate international income inequalities in the recipient countries, that will benefit mainly from aid for trade adjustment and technical assistance.
Aid for trade --- Computable general equilibrium model --- Economic Theory & Research --- Emerging Markets --- Environmental Economics & Policies --- Income inequality --- Inequality --- International Economics & Trade --- Labor Policies --- Macroeconomics and Economic Growth --- Trade balance --- Welfare
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The overall impacts on the Brazilian economy of reducing CO2 emissions from energy use and industrial processes can be assessed using a recursive dynamic general equilibrium model and a hypothetical carbon tax. The study projects that in 2040 under a business-as-usual scenario, CO2 emissions from energy use and industrial processes would be almost three times as high as in 2010 and would account for more than half of total national CO2 emissions. Current policy aims to reduce deforestation by 70 percent by 2017 and emissions intensity of the overall economy by 36-39 percent by 2020. If policy is implemented as planned and continued to 2040, CO2 emissions from energy use and industrial processes would not have to be cut until 2035 as reductions of emissions through controlling deforestation would be enough to meet emission targets. The study also finds evidence that supports the double dividend hypothesis: using revenue from a hypothetical carbon tax to finance a cut in labor income tax significantly lowers the gross domestic product impacts of the carbon tax. Using carbon tax revenue to subsidize wind power can effectively increase the output of wind power in the country, although the impact of the tax on gross domestic product would be somewhat increased.
Climate Change Economics --- Climate change mitigation --- Climate Change Mitigation and Green House Gases --- Computable General Equilibrium Model --- Energy --- Energy and Environment --- Energy Production and Transportation --- Environment --- Environment and Energy Efficiency --- Low carbon economic growth --- Brazil
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Many countries have undertaken market-oriented reforms of the power sector over the past four decades. However, the literature has not investigated whether the reforms have contributed to economic development. This study aims to assess the potential macroeconomic impacts of an element of the power sector reform process that China started in 2015. It uses an energy sector TIMES model and a computable general equilibrium model. The study finds that the price of electricity in China would be around 20 percent lower than the country is likely to experience in 2020, if the country follows the market principle to operate the power system. The reduction in the price of electricity would spill over throughout the economy, resulting in an increase in gross domestic product of more than 1 percent in 2020. It would also increase household income, economic welfare, and international trade.
CGE Model --- Computable General Equilibrium Model --- Economic Growth --- Economic Theory and Research --- Electric Power --- Electricity --- Energy --- Energy and Environment --- Energy Conservation and Efficiency --- Energy Policies and Economics --- Energy Sector Planning --- Macroeconomic Impact --- Macroeconomics and Economic Growth --- Power Sector Reform
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This paper explores the economic impacts of preferential trade agreements, focusing on the provisions they contain, beyond phasing out tariffs. Clustering 278 preferential trade agreements based on 906 provisions grouped into 18 policy areas, three clusters are obtained for which a trade elasticity to preferential trade agreement is estimated using structural gravity. A series of full general equilibrium counterfactual situations for endowment economies is simulated, revealing the economic impacts of deepening existing trade agreements and signing new ones-that is, the intensive and extensive margins of preferential trade agreements. The paper illustrates the method with a general deepening of existing preferential trade agreements worldwide. Focusing on the examples of the Latin America and the Caribbean and East Asia and Pacific regions, the paper shows that deepening preferential trade agreements leads to higher trade and welfare effects than signing new ones.
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