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The Climate Risk Premium: How Uncertainty Affects the Social Cost of Carbon

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  • Derek Lemoine

Abstract

I analyze the marginal value of reducing greenhouse gas emissions (the “social cost of carbon”) under uncertainty about warming, under uncertainty about how much warming reduces consumption, and under stochastic shocks to consumption growth. I theoretically demonstrate that each of these sources of uncertainty increases the social cost of carbon under conventional preferences. In a calibrated numerical implementation, uncertainty increases the 200-year social cost of carbon by more than 20%. Uncertainty about the consumption impacts of warming contributes the most to this premium and makes the social cost of carbon sensitive to impacts even after 2400.

Suggested Citation

  • Derek Lemoine, 2021. "The Climate Risk Premium: How Uncertainty Affects the Social Cost of Carbon," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 8(1), pages 27-57.
    • Handle: RePEc:ucp:jaerec:doi:10.1086/710667
    DOI: 10.1086/710667
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    Cited by:

    1. Georgii Riabov & Aleh Tsyvinski, 2021. "Policy with stochastic hysteresis," Papers 2104.10225, arXiv.org.
    2. Olijslagers, Stan & van der Ploeg, Frederick & van Wijnbergen, Sweder, 2023. "On current and future carbon prices in a risky world," Journal of Economic Dynamics and Control, Elsevier, vol. 146(C).
    3. Huafang Huang & Sharafat Ali & Yasir Ahmed Solangi, 2023. "Analysis of the Impact of Economic Policy Uncertainty on Environmental Sustainability in Developed and Developing Economies," Sustainability, MDPI, vol. 15(7), pages 1-19, March.
    4. Dominika Czyz & Karolina Safarzynska, 2023. "Catastrophic Damages and the Optimal Carbon Tax Under Loss Aversion," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 85(2), pages 303-340, June.
    5. De Bruin, Kelly & Kiran Krishnamurthy, Chandra, 2021. "Optimal Climate Policy with Fat-tailed Uncertainty: What the Models Can Tell Us," Papers WP697, Economic and Social Research Institute (ESRI).
    6. Francisco Costa & Fabien Forge & Jason Garred & João Paulo Pessoa, 2023. "The Impact of Climate Change on Risk and Return in Indian Agriculture," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 85(1), pages 1-27, May.
    7. Prest, Brian C., 2023. "Disentangling the Roles of Growth Uncertainty, Discounting, and the Climate Beta on the Social Cost of Carbon," RFF Working Paper Series 23-41, Resources for the Future.
    8. Rennert, Kevin & Prest, Brian C. & Pizer, William & Newell, Richard G. & Anthoff, David & Kingdon, Cora & Rennels, Lisa & Cooke, Roger & Raftery, Adrian E. & Ševčíková, Hana & Errickson, Frank, 2021. "The Social Cost of Carbon: Advances in Long-Term Probabilistic Projections of Population, GDP, Emissions, and Discount Rates," RFF Working Paper Series 21-28, Resources for the Future.
    9. Lopez, Ramon E. & Pastén, Roberto & Gutiérrez Cubillos, Pablo, 2022. "Climate change in times of economic uncertainty: A perverse tragedy of the commons?," Economic Analysis and Policy, Elsevier, vol. 75(C), pages 209-225.
    10. Morakinyo O Adetutu & Kayode A Odusanya & Eleni Stathopoulou & Thomas G Weyman-Jones, 2023. "Environmental regulation, taxes, and activism," Oxford Economic Papers, Oxford University Press, vol. 75(2), pages 460-489.
    11. Ottmar Edenhofer & Kai Lessmann & Ibrahim Tahri, 2021. "Asset Pricing and the Carbon Beta of Externalities," CESifo Working Paper Series 9269, CESifo.

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