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The IMF-World Bank Climate Policy Assessment Tool (CPAT): A Model to Help Countries Mitigate Climate Change
To stabilize the climate, global greenhouse gas emissions must be cut by 25 to 50 percent by 2030 compared to 2019. Such an unprecedented rate of decarbonization necessitates climate mitigation policies across countries, notably carbon pricing, fossil fuel subsidy reform, renewable subsidies, feebates, emission rate regulations, and public investments. To design and implement effective, efficient, and equitable policies, governments need tools to assess economic, environmental, fiscal, and social impacts. To support this effort, the IMF and World Bank are making their joint Climate Policy Assessment Tool (CPAT) available to governments. CPAT is a transparent, flexible, and user-friendly model covering over 200 countries. It allows for the rapid quantification of impacts of climate mitigation policies, including on energy demand, prices, emissions, revenues, welfare, GDP, households and industries, local air pollution and health, and many other metrics. This paper describes the CPAT model, its data sources, key assumptions, and caveats.
Personal Income Tax Progressivity: Trends and Implications
This paper discusses how the structure of the tax system affects its progressivity. It suggests a measure of progressive capacity of tax systems, based on the Kakwani index, but independent of pre-tax income distributions. Using this and other progressivity measures, the paper (i) documents a decline in progressivity over the last decades and (ii) examines the relationship between progressivity and economic growth. Regressions do not reveal a significant impact of progressivity on growth, suggesting that efficiency costs of progressivity may be small—at least for degrees of progressivity observed in the sample.
Scaling Up Climate Mitigation Policy in Germany
Germany has set national greenhouse emissions targets of a 65 percent reduction below 1990 levels by 2030 and net zero emissions by 2045, along with various sectoral emissions goals. To achieve these targets, the government has introduced multi-pronged policy measures, including a national emissions trading system (ETS), which complements the ETS at the EU level. This paper shows the substantial variation in the price responsiveness of emissions across sectors and thus prices implied by sectoral targets. It proposes the following measures to help Germany meet emissions targets with greater certainty and cost effectiveness: (i) further strengthening carbon pricing, for example through automat...
Surging Energy Prices in Europe in the Aftermath of the War: How to Support the Vulnerable and Speed Up the Transition Away from Fossil Fuels
We estimate that the recent surge in international fossil fuel prices will raise European households’ cost of living in 2022 by close to 7 percent of consumption on average. Household burdens vary significantly across and within countries, but in most cases they are regressive. Policymakers have mostly responded to the shock with broad-based price-suppressing measures, including subsidies, tax reductions, and price controls. Going forward, the policy emphasis should shift rapidly towards allowing price signals to operate more freely and providing income relief to the vulnerable. The surge in energy prices will encourage energy conservation and investments in renewable energy, but the manyfold rise in natural gas prices could lead to a persistent switch towards coal. To ensure steady progress towards carbon emissions reduction goals, authorities could use the opportunity to strengthen carbon pricing when global fossil fuel prices decline in the future. Non-price incentives for investments in energy efficiency and renewable energy should also be enhanced, as envisaged in the RePowerEU plan.
Targeted, Implementable, and Practical Energy Relief Measures for Households in Europe
The recommended way of helping households during the ongoing European energy crisis is to allow price signals to operate freely while providing targeted compensation to the vulnerable. In practice, however, institutional, political, and technical constraints have led many European governments to adopt broad, price-suppressing measures, which impede the adjustment in demand, have high fiscal costs, and widen cross-country gaps in prices. This paper focuses on easy-to-implement, second-best policies. Bonuses or rebates on energy bills (that are not linked to the current volume of consumption) or block tariffs are simple options which would improve on the current policy design in many countries. To avoid stoking inflation, fiscal policy should not add to aggregate demand, so relief for energy bills should be targeted and coupled with offsetting fiscal measures. One option is to reclaim the relief from the better-off through income taxation, which would also make support more progressive.
Sleepwalking to the Cliff Edge? A Wake-up Call for Global Climate Action
Urgent action to cut greenhouse gas (GHG) emissions is needed now. Early next year, all countries will set new emissions targets for 2035 while revising their 2030 targets. Global GHGs must be cut by 25 and 50 percent below 2019 levels by 2030 to limit global warming to 2°C and 1.5°C respectively. But current targets would only cut emissions by 12 percent, meaning global ambition needs to be doubled to quadrupled. Further delay will lead to an ‘emissions cliff edge’, implying implausible cuts in GHGs and putting put 1.5°C beyond reach. This Note provides IMF staff’s annual assessment of global climate mitigation policy. It illustrates options for equitably aligning country targets with the Paris Agreement’s temperature goals. It also provides guidance on modelling needed to set emissions targets and quantify climate mitigation policy impacts.
Republic of Korea
Selected Issues
Belize
Belize is exceptionally vulnerable to natural disasters and climate change. It already faces hurricanes, flooding, sea level rise, coastal erosion, coral bleaching, and droughts, with impacts likely to intensify given expected increases in weather volatility and sea temperature. Hence, planning for resilience-building, and engagement with development partners on environmental reforms, have been central to Belizean policymaking for many years, since well before Belize submitted its Nationally Determined Contribution (NDC) to the Paris Accord in 2015. This Climate Change Policy Assessment (CCPA) takes stock of Belize’s plans to manage its climate response, from the perspective of their macro...
How Should Shale Gas Extraction Be Taxed?
This paper suggests that the environmental and commercial features of shale gas extraction do not warrant a significantly different fiscal regime than recommended for conventional gas. Fiscal policies may have a role in addressing some environmental risks (e.g., greenhouse gases, scarce water, local air pollution) though in some cases their net benefits may be modest. Simulation analyses suggest, moreover, that special fiscal regimes are generally less important than other factors in determining shale gas investments (hence there appears little need for them), yet they forego significant revenues.
India
India: Selected Issues
