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  • 1
    Language: English
    Pages: 1 Online-Ressource (88 p.) , 21 x 28cm.
    Series Statement: OECD Economic Policy Papers no.31
    Keywords: Economics
    Abstract: Global progress towards tackling climate change is lagging. This paper puts forward a framework to design comprehensive decarbonisation strategies while promoting growth and social inclusion. It first highlights the need of evaluating a country’s national climate targets and current policy mix, in conjunction with facilitating monitoring tools to assess current and future progress, as a key step to design effective decarbonisation strategies. It then provides a detailed comparison of several policy instruments across different assessment criteria, which indicates that no single instrument is clearly superior to all others. This highlights the need for developing decarbonisation strategies based on a wide policy mix consisting of three main components: 1) emission pricing policy instruments; 2) standards and regulations; 3) complementary policies to facilitate the reallocation of capital, labour and innovation towards low-carbon activities and to offset the adverse distributional effects of reducing emissions. However, there is no one-size-fits-all policy mix, as feasible policy choices depend on countries’ industrial structure, social preferences and political constraints. A robust and independent institutional framework, stakeholders engagement and credible communication campaigns are key to managing these constraints and ultimately enhancing public acceptance of climate mitigation policies.
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  • 2
    Language: English
    Pages: 1 Online-Ressource (51 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1732
    Keywords: Economics
    Abstract: This paper estimates the long-run elasticity of emissions and carbon-related government revenues to carbon pricing. It is based on the OECD Effective Carbon Rates database, the most comprehensive cross-country longitudinal database on direct and indirect carbon pricing. Econometric estimates suggest that a EUR 10 increase in carbon pricing decreases CO2 emissions from fossil fuels by 3.7% on average in the long term. In such a scenario, carbon-related government revenues would triple at global level, though over time they are expected to dwindle as additional increases in carbon pricing result in further reductions in emissions. Broadening carbon pricing to currently unpriced emissions contributes to two thirds of the effects on emissions and revenues. At the country level, emissions and government revenues responses differ depending on countries’ sectoral structure and fuel sources. Dynamic simulations based on these estimates reveal that even large effective carbon rates (about EUR 1000 per tonne by late 2030s) will not suffice to meet net-zero emission targets. A sensitivity analysis shows that this result is robust to a large range of elasticity estimates. Reaching net zero then calls for complementary policies aiming at broadening and raising carbon prices, and drastically increasing the substitution of clean energy sources for fossil fuels through innovation and reallocation.
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  • 3
    Language: English
    Pages: 1 Online-Ressource (74 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1705
    Keywords: Economics ; Denmark
    Abstract: Denmark has been a frontrunner in policies that reduce greenhouse gas emissions and now plans to cut emissions by 70% by 2030 from 1990 levels and to achieve carbon neutrality by 2050. Such ambition induces halving emissions from 2019 levels and making the same emission abatement effort in ten years than the past thirty years. Cutting emissions at such fast pace will be challenging with substantial disruptions and macroeconomic consequences. A balanced mix of pricing policies, public investment, regulation and enabling policies should allow smoothing the potential economic and social shocks and accompanying the reallocation of resources. This paper investigates further sectoral climate strategies in Denmark. In the energy sector (electricity and district heating), past progress made to ramp up clean technologies provides a good blueprint to achieve further decarbonisation, but the focus will need to be put soon on lowering reliance on woody biomass. In the transport sector, emissions have continued to increase despite the shift to more fuel-efficient vehicles, highlighting the need for more transformative policies to expand alternatives to individual car uses. In agriculture, little has been done so far to cut emissions, especially from livestock. The sector is subject to leakage risks, but nonetheless should be encouraged to transform its practices. Helping farmers to monitor their GHG emissions should be combined with more stringent regulation.
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  • 4
    Language: English
    Pages: 1 Online-Ressource (92 p.) , 21 x 28cm.
    Series Statement: OECD Economic Policy Papers no.32
    Keywords: Economics
    Abstract: Governments rapidly provided large support to help households and firms face the 2021-22 energy price crisis. Drawing on the OECD Energy Support Measures Tracker and country case studies, this paper documents countries’ policy responses and draws lessons for enhancing countries’ preparedness to future energy price shocks. Support implemented or announced by countries so far has been largely untargeted and often fiscally costly. As such it might add to inflationary pressures and in many cases reduce incentives to save energy and transition away from fossil fuels. Reliance on imported energy, technical obstacles to implement a targeted approach and political economy constraints help explain the type of support countries provided. There is now a case for withdrawing broad-based energy support, given the recent moderation in energy prices and ongoing or planned minimum-wage and welfare-benefit increases to compensate for high inflation. Digitalisation would help improve the quality of support countries can provide to face a future energy or other crisis by speeding up payment delivery and facilitating a more targeted approach based on vulnerability factors beyond low income, such as the inability to renovate an energy-inefficient home. Ensuring that support measures maintain incentives for energy savings and encourage energy diversification, combined with investments to accelerate the green transition, is key to reducing vulnerability to energy price shocks.
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  • 5
    Language: English
    Pages: 1 Online-Ressource (47 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1761
    Keywords: Economics
    Abstract: This paper assesses to what extent markets with sophisticated investors and large firms price transition risks due to climate policies. The analysis exploits longitudinal data on firms’ economic and environmental performances - as measured by emission intensity, patenting activity in mitigation technologies, and ESG scores – and syndicated loan data. It provides three main results. First, firms with good environmental performance (in terms of emission intensity or patenting activity in mitigation technologies) benefit from a significantly lower cost of debt as climate-change mitigation policies become more stringent. Second, ESG scores and their environmental pillar are not sufficiently informative to assess and price domestic climate policy risks. Third, more stringent mitigation policies encourage investment in green firms by reducing the cost of debt: an increase of about EUR 10/t CO2 in carbon taxes raises investment by about 12% for firms with high patenting activity in mitigation technologies while it decreases investment by about 11% for firms with high emission intensity. The paper discusses policies to improve the available information on firms’ environmental performance metrics so as to enable investors who are smaller and less sophisticated than those participating in the syndicated-loan market to assess firms’ climate transition risks and to allocate capital in line with emission reduction targets.
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  • 6
    Language: English
    Pages: 1 Online-Ressource (57 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1749
    Keywords: Economics
    Abstract: This paper reviews different methods for assessing and comparing across countries the impact of climate change mitigation policies and policy packages on emissions. Broadening and deepening past and recent mitigation policies’ stocktaking efforts, as well as mapping them to their emission base, is key to comparing pricing and non-pricing policies and feed comparable information to ex-post empirical and ex-ante analytical models. Ex-post empirical approaches can provide benchmark estimates of policies' effectiveness from past data and furnish key parameter estimates to calibrate ex-ante analytical models (partial equilibrium, general equilibrium and integrated assessment models). Moreover, they can complement ex-ante analytical models by empirically validating their assumptions and informing models’ choices. Ex-ante analytical modelling are well suited to provide long-term forward-looking projections also on yet-to-be implemented policies. Sector specific models, such as energy system models, are well suited for a granular assessment of the impact on emissions of a wide range of price- and non-price-based policies. Outputs from the ex-ante sector-specific models can then feed into a Computable General Equilibrium model to quantify the effect of individual policies and policy packages on emissions, taking into account second order effects and reducing the risk of double counting the effect of policies.
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  • 7
    Language: English
    Pages: 1 Online-Ressource (36 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1773
    Keywords: Economics ; Environment
    Abstract: This paper provides empirical evidence on the short and long-term sectoral effect of environmental policy stringency on CO2 emissions, exploiting longitudinal data covering 30 OECD countries and more than 50 sectors. The analysis relies on the OECD Environmental Policy Stringency (EPS) index, a composite index tracking climate change and air pollution mitigation policies. Estimates obtained from panel regressions suggest that more stringent environmental policies are associated with lower emissions, that the effect builds over time and differs across sectors depending on their fossil fuel intensity. A one unit increase in the EPS index (about one standard deviation), is associated with 4% lower CO2 emissions in the sector with median fossil fuel intensity after two years and by 12% after 10 years. For sectors in the top decile of the fossil fuel intensity distribution, the estimates point to a decline in emissions by 11% after two years and 19% after ten years. Environmental policies targeted at energy, manufacturing and transport sectors have the largest potential impact on emissions. Illustrative policy scenarios based on these results indicate that achieving emission reductions consistent with net-zero targets will require raising the stringency of environmental policies more drastically and rapidly than in the past.
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  • 8
    Language: English
    Pages: 1 Online-Ressource (47 p.) , 21 x 28cm.
    Series Statement: OECD Economics Department Working Papers no.1786
    Keywords: Economics
    Abstract: This paper identifies different types of climate change mitigation strategies countries adopted over the last two decades and assesses the policy synergies they might generate. The analysis exploits the rich policy repository of the OECD’s Climate Actions and Policies Measurement Framework (CAPMF). This is the most comprehensive and harmonised mitigation policy database to date, covering more than 120 policy instruments and 50 countries over 2000-20. Statistical cluster analysis yields four types of mitigation strategies, which differ in the variety and stringency of mitigation policies. Until the mid-2000s mitigation strategies were similar and based on few policies and low overall stringency. They started to differentiate in the mid-2000s and then in the mid-2010s as some countries enlarged the variety of policy instruments and raised stringency. Regression results indicate that emissions are negatively associated with the overall stringency of the country’s mitigation strategies. Moreover, this relationship is stronger for mitigation strategies comprising a larger set of instruments, pointing to larger policy synergies.
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