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Priority for the worse-off and the social cost of carbon

Author

Listed:
  • Matthew Adler

    (Duke University School of Law)

  • David Anthoff

    (Energy and Resources Group, University of California)

  • Valentina Bosetti

    (Bocconi University, and FEEM)

  • Greg Garner

    (Earth and Environmental Systems Institute, The Pennsylvania State University, University Park
    Present address: Woodrow Wilson School, Princeton University, Princeton, New Jersey 08544, USA.)

  • Klaus Keller

    (Earth and Environmental Systems Institute, The Pennsylvania State University, University Park
    The Pennsylvania State University, University Park
    Carnegie Mellon University)

  • Nicolas Treich

    (Toulouse School of Economics, INRA, University of Toulouse Capitole)

Abstract

The social cost of carbon (SCC) is a key tool in climate policy. The SCC expresses in monetary terms the social impact of the emission of a ton of CO2 in a given year. The SCC is calculated using a ‘social welfare function’ (SWF): a method for assessing social welfare. The dominant SWF in climate policy is the discounted-utilitarian SWF. Individuals’ well-being numbers (utilities) are summed, and the values for later generations are reduced (‘discounted’). This SWF has been criticized for ignoring the distribution of well-being and including an arbitrary time preference. Here, we use a ‘prioritarian’ SWF, with no time discount, to calculate the SCC. This SWF gives extra weight (‘priority’) to worse-off individuals. Prioritarianism is a well-developed concept in ethics and welfare economics, but has been rarely used in climate scholarship. We find substantial differences between the discounted-utilitarian and non-discounted prioritarian SCCs.

Suggested Citation

  • Matthew Adler & David Anthoff & Valentina Bosetti & Greg Garner & Klaus Keller & Nicolas Treich, 2017. "Priority for the worse-off and the social cost of carbon," Nature Climate Change, Nature, vol. 7(6), pages 443-449, June.
    • Handle: RePEc:nat:natcli:v:7:y:2017:i:6:d:10.1038_nclimate3298
    DOI: 10.1038/nclimate3298
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    3. Bas Jacobs & Rick van der Ploeg, 2017. "Should Pollution Taxes be Targeted at Income Redistribution?," CESifo Working Paper Series 6599, CESifo.
    4. Casey Helgeson & Robert E. Nicholas & Klaus Keller & Chris E. Forest & Nancy Tuana, 2022. "Attention to values helps shape convergence research," Climatic Change, Springer, vol. 170(1), pages 1-19, January.
    5. Stéphane Zuber & Marc Fleurbaey, 2019. "Discounting and Intergenerational Ethics," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) hal-04467244, HAL.
    6. Malerba, Daniele & Gaentzsch, Anja & Ward, Hauke, 2021. "Mitigating poverty: The patterns of multiple carbon tax and recycling regimes for Peru," Energy Policy, Elsevier, vol. 149(C).
    7. Bramka Arga Jafino & Jan H. Kwakkel & Frans Klijn, 2022. "Evaluating the distributional fairness of alternative adaptation policies: a case study in Vietnam’s upper Mekong Delta," Climatic Change, Springer, vol. 173(3), pages 1-20, August.
    8. Jinchi Dong & Jinnan Wang & Bi Jun & Richard S.J. Tol, 2023. "The effects of weather conditions on economic growth: Evidence from global subnational economic output and income," Working Paper Series 0423, Department of Economics, University of Sussex Business School.
    9. Martinet, Vincent & Del Campo, Stellio & Cairns, Robert D., 2022. "Intragenerational inequality aversion and intergenerational equity," European Economic Review, Elsevier, vol. 144(C).
    10. Rafaty, R. & Dolphin, G. & Pretis, F., 2020. "Carbon pricing and the elasticity of CO2 emissions," Cambridge Working Papers in Economics 20116, Faculty of Economics, University of Cambridge.
    11. Rising, James A. & Taylor, Charlotte & Ives, Matthew C. & Ward, Robert E.T., 2022. "Challenges and innovations in the economic evaluation of the risks of climate change," Ecological Economics, Elsevier, vol. 197(C).
    12. Ottmar Edenhofer & Max Franks & Matthias Kalkuhl, 2021. "Pigou in the 21st Century: a tribute on the occasion of the 100th anniversary of the publication of The Economics of Welfare," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 28(5), pages 1090-1121, October.
    13. Edenhofer, Ottmar & Flachsland, Christian & Kalkuhl, Matthias & Knopf, Brigitte & Pahle, Michael, 2019. "Optionen für eine CO2-Preisreform," Working Papers 04/2019, German Council of Economic Experts / Sachverständigenrat zur Begutachtung der gesamtwirtschaftlichen Entwicklung.
    14. Moritz A. Drupp & Ulrike Kornek & Jasper N. Meya & Lutz Sager, 2021. "Inequality and the Environment: The Economics of a Two-Headed Hydra," CESifo Working Paper Series 9447, CESifo.
    15. Jafino, Bramka Arga, 2021. "An equity-based transport network criticality analysis," Transportation Research Part A: Policy and Practice, Elsevier, vol. 144(C), pages 204-221.
    16. Suphi Sen & Serhan Sadikoglu & Changjing Ji & Edwin van der Werf, 2024. "The Effectiveness of Carbon Pricing: A Global Evaluation," CESifo Working Paper Series 11291, CESifo.
    17. Christian P. Fries & Lennart Quante, 2023. "Intergenerational Equitable Climate Change Mitigation: Negative Effects of Stochastic Interest Rates; Positive Effects of Financing," Papers 2312.07614, arXiv.org, revised May 2024.
    18. Jacobs, Bas & van der Ploeg, Frederick, 2019. "Redistribution and pollution taxes with non-linear Engel curves," Journal of Environmental Economics and Management, Elsevier, vol. 95(C), pages 198-226.
    19. Rising, James A. & Taylor, Charlotte & Ives, Matthew C. & Ward, Robert E.t., 2022. "Challenges and innovations in the economic evaluation of the risks of climate change," LSE Research Online Documents on Economics 114941, London School of Economics and Political Science, LSE Library.
    20. Ekholm, Tommi, 2018. "Climatic Cost-benefit Analysis Under Uncertainty and Learning on Climate Sensitivity and Damages," Ecological Economics, Elsevier, vol. 154(C), pages 99-106.

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    JEL classification:

    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming

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