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FURTHER COMMENT ON "A RAPID ASSESSMENT MODEL FOR UNDERSTANDING THE SOCIAL COST OF CARBON"

Stephen Newbold (), Charles Griffiths, Chris Moore (), Ann Wolverton () and Elizabeth Kopits
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Elizabeth Kopits: US EPA, National Center for Environmental Economics, EPA West Building, 1301 Constitution Avenue NW, Washington, DC 20460, USA

Climate Change Economics (CCE), 2014, vol. 05, issue 02, 1-6

Abstract: In this reply to the comment by Gerlagh, we confirm an error in our estimate of the certainty-equivalent social cost of carbon (SCC) reported in Newboldet al.(2013), and we discuss the underlying conceptual difficulties that arise in conducting a social welfare analysis when preferences are heterogeneous or uncertain. The certainty-equivalent SCC depends crucially on the reference level of per capita consumption used to normalize marginal utility across possible preference parameters, and our estimate of the certainty-equivalent SCC was driven largely by an arbitrary choice of measurement units. All other results from our rapid assessment model are based on the deterministic SCC or its simulated probability distribution, which does not depend on the reference level of per capita consumption.

Keywords: Social cost of carbon; social welfare; integrated assessment model; preference uncertainty (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S2010007814500055

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