Risk Aversion, Time Preference, and the Social Cost of Carbon
The Stern Review reported a social cost of carbon of over $300/tC, calling for ambitious climate policy. We here conduct a systematic sensitivity analysis of this result on two crucial parameters: the rate of pure time preference, and the rate of risk aversion. We show that the social cost of carbon lies anywhere in between 0 and $120,000/tC. However, if we restrict these two parameters to match observed behavior, an expected social cost of carbon of $60/tC results. If we correct this estimate for income differences across the world, the social cost of carbon rises to over $200/tC.
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- David Evans & Haluk Sezer, 2004. "Social discount rates for six major countries," Applied Economics Letters, Taylor & Francis Journals, vol. 11(9), pages 557-560.
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