Measuring the welfare effects of tax changes using the LES: An application to a carbon tax

This paper explores the use of a parametric approach to the measurement of compensating and equivalent variations resulting from price changes. The approach is based on the application of the Linear Expenditure System (LES) to each of a range of household income groups, rather than being based on a representative consumer. The method is then used to examine the distributional effects of a carbon tax, designed to reduce carbon dioxide emissions. The price changes resulting from a carbon tax depend on the carbon intensities of each good, which depend in turn on the nature of inter-industry transactions (the input-output matrix). The use of transfer payments to compensate for adverse distributional effects of a carbon tax is investigated, using social welfare functions based on equivalent incomes.     

Impacts of an EC carbon/energy tax and deregulating thermal power supply on CO2, SO2 and NOx emissions

Emission of CO₂, SO₂ and NO_x are all closely linked to the burning of fossil fuels. Here we report on simulations done by linking a Sectoral European Energy Model (SEEM), covering energy demand in nine Western European countries, with the emission-transport-deposition model RAINS developed by IIASA. The study analyses emissions of CO₂, SO₂ and NO_x, deposition of sulphur and nitrogen and the extent of areas where the critical load for sulphur is exceeded in year 2000 under four different energy scenarios. Two different sets of future behavioural patterns for the thermal electric power production sector are considered. In one regime, called the plan-efficient regime, the sector is assumed to follow official plans with regard to investment in new capacity. In the other regime, called the cost-efficient regime, the thermal power sector is assumed to behave in a cost minimizing manner. The effects of the proposed EC carbon/energy tax are studied under both regimes, giving rise to altogether four scenarios.In both regimes the effect of the EC tax is to reduce emissions by between 6 and 10 per cent in year 2000 relative to the scenarios without the tax. A change of regime, from the regulated, plan-efficient regime to the market-based, cost-efficient regime, will, by itself, reduce emissions of CO₂ and NO_x by approximately 3 per cent, while SO₂ emissions are reduced by 13 per cent. The EC tax will reduce sulphur deposition by more than 5 per cent in the nine model countries under the plan-efficient regime. A change of regime further reduces the total deposition by 9 per cent. The area where depositions exceed the critical load is reduced by approximately 6 per cent in year 2000 by the tax in both regimes. Changing from the plan-efficient to the cost-efficient regime has a similar impact.Although the emission reductions due to the EC tax may seem modest, they are shown to have a sizeable effect on the technological abatement costs of reaching targets like those prescribed in the Sofia protocol on the stabilisation of NO_x emissions, and the Helsinki protocol on SO₂ emission reductions. This is part of what can be considered to be secondary benefits of the EC carbon/energy tax.     

Determinants of renewable energy adoption in China and India: a comparative analysis

This article examines the dynamic relationships among output, carbon emission and renewable energy generation of India and China during the period 1972 to 2011 using a multivariate vector error correction model (VECM). The results for India reveal unidirectional short-run causality from carbon emission to renewable energy generation and from renewable energy generation to output, whereas in the long run, the variables have bidirectional causality. Causalities in China give a rather different scenario, with a short-run unidirectional causality from output to renewable energy and from carbon emission to renewable energy generation. In the long run, for China, unidirectional causality is found from output to renewable energy generation, while bidirectional causality is found between carbon emission and renewable energy generation.     

The incidence of import liberalization with and without a value added tax: an application to bangladesh

This paper examines the impact of import tariffs and tariff-replacing indirect taxes on the welfare of households grouped by the size distribution of income. A computable general equilibrium model for Bangladesh is simulated to examine the removal of quantitative restrictions and tariffs as well as the replacement of trade taxes with a value added tax (VAT). Import liberalization alone expands the manufacturing sector and increases the welfare of lower income households. If a uniform VAT is placed on both imports and all non-agricultural production in order to replace the lost tariff revenue for the government, some of the gains from import liberalization are diminished. If exports are exempted from the VAT, the gains are sustained to a greater degree. With a combination of tariff liberalization, quota markups, and the VAT, the economy goes through a contraction and the welfare of all households is reduced.     

A multi-factor efficiency perspective to the relationships among world GDP, energy consumption and carbon dioxide emissions

Most of the research articles on climate change study the relationships between economic growth, and, carbon dioxide (CO₂) emission or energy consumption separately for analyzing the impacts of economic growth and energy consumption on global carbon dioxide emissions. In this paper, the linkages among CO₂ emissions, Gross Domestic Product (GDP) growth and energy consumption are studied simultaneously using Data Envelopment Analysis (DEA). The time period considered for the study is 1980-2001. The results show that world in the year 1980 was the most efficient in achieving the highest economic growth, emitting least carbon dioxide for a given level of energy consumption for that year. The efficiency index reduced in the next 8 years, fluctuated with a declining trend for the next 7 years, and began to rise from 1996 till 2001. The model is further extended in this paper for technology forecasting to identify the links between energy consumption and carbon dioxide emissions for achieving projected levels of GDP under two different assumptions on efficiency index. It has been identified using the forecasting model that, when the carbon dioxide emissions are restricted to the levels emitted in the year 1990 and when the efficiency index for the year 2025 is assumed to be at the level registered for the year 1980 (highest value), the non-fossil energy consumption needed to meet the GDP level projected for 2025 will be much smaller (35.46 quadrillion Btu for the reference GDP) than the values actually recorded in the year 1990 (44.59). However, the non-fossil energy consumption in 2025 (118.8) increases much more than the actual recorded in the year 1990 when the efficiency index in 2025 is assumed to be at the level registered for the year 1990.     

资源禀赋与绿色创新——从中国省际数据的经验研究看“荷兰病”之破解

文章基于"资源诅咒"假说,利用1999-2006年中国省际面板数据,实证分析了资源禀赋、绿色创新及经济增长的逻辑关系.研究结果表明:(1)我国绿色创新的激励机制主要源于煤炭的污染性、而非能源的稀缺性,各地区的绿色创新主要面向"减排"、而非"节能";(2)我国资源充裕地区的绿色创新动力,主要依赖于投入相对更多的研发资金与人力资本、采取相对更严的环境政策及措施;(3)绿色创新对资源丰裕地区经济增长的贡献率高于传统创新对资源丰裕地区的相应贡献率,绿色创新对资源丰裕地区经济增长的贡献率高于其对资源贫乏地区的相应贡献率.结论认为,绿色创新下的资源禀赋并非"资源诅咒",而是"资源福音",这不仅是"适者生存"的必要手段,更是破解"资源诅咒"的重要途径.