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

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12 Scopus citations

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 implementa-tion, 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.

Original languageEnglish (US)
Pages (from-to)27-57
Number of pages31
JournalJournal of the Association of Environmental and Resource Economists
Volume8
Issue number1
DOIs
StatePublished - Jan 1 2021

Keywords

  • carbon
  • climate
  • emission
  • ex-ternality
  • insurance
  • precautionary saving
  • prudence
  • risk
  • uncertainty

ASJC Scopus subject areas

  • Economics and Econometrics
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

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