Third-Best Carbon Taxation: Trading Off Emission Cuts, Equity, and Efficiency

van der Ploeg, F., Rezai, A., & Reaños, M.T. (2025). Third-Best Carbon Taxation: Trading Off Emission Cuts, Equity, and Efficiency. Journal of the Association of Environmental and Resource Economists 12 (4) 1023-1058. 10.1086/732802.

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We analyze carbon taxes, lump-sum climate dividends, and changes to the level and progressivity of the income tax system that optimally trade off carbon emissions, equity, and efficient raising of public revenue while preserving budgetary neutrality and not using individualized lump-sum transfers. Such “third-best” policies include a carbon tax that exceeds the Pigouvian level and recycling of all carbon tax revenue via climate dividends for high (and our preferred) degrees of inequality aversion, even if this implies higher income taxes to meet existing revenue requirements. The carbon tax, climate dividends, and the progressivity of the income tax rise with the degree of inequality aversion. Our results are derived from a microsimulation model estimated from German data, which includes heterogeneous households, an exact affine Stone index demand system, and endogenous labor supply. We decompose the welfare effects of policy into emissions, equity, and efficiency components for different degrees of inequality aversion and climate damages.

['eprint_fieldname_type' not defined]:	['eprint_typename_article' not defined]
Research Programs:	Advancing Systems Analysis (ASA)['lib/metafield:join_subject' not defined]Advancing Systems Analysis (ASA)['lib/metafield:join_subject_parts' not defined]Systemic Risk and Resilience (SYRR)['lib/metafield:join_subject' not defined]Population and Just Societies (POPJUS)['lib/metafield:join_subject' not defined]Population and Just Societies (POPJUS)['lib/metafield:join_subject_parts' not defined]Equity and Justice (EQU)
['eprint_fieldname_userid' not defined]:	Luke Kirwan
Date Deposited:	06 ['lib/utils:month_short_06' not defined] 2025 09:53
['eprint_fieldname_lastmod' not defined]:	06 ['lib/utils:month_short_06' not defined] 2025 09:53
URI:	https://pure.iiasa.ac.at/20654

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