Sequencing decarbonization policies to manage their macroeconomic impacts

Steven Fries

INET Oxford Working Papers from Institute for New Economic Thinking at the Oxford Martin School, University of Oxford

Abstract: Decarbonization policies exhibit clear sequencing patterns within sectors and countries as well as across them. This paper explains these sequences using a Solow-Swan growth model with two distinguishing features. One is a variable elasticity of substitution production function with both fossil fuel–based and low carbon inputs. The second is a choice of decarbonization policy: a carbon price or low carbon investment subsidy. Their policy costs have significant macroeconomic impacts. One cost arises from a short-run tradeoff between decarbonizing productive activities and maintaining the level of output. There are also a second-round policy cost associated with the policy choice between a low carbon subsidy or a carbon price that varies with progress in decarbonization. The modeling shows how these policy costs can be managed by the observed policy sequence of a low carbon investment subsidy before a carbon price and initial use of this decarbonization policy in sectors where low carbon inputs are stronger substitutes for the incumbents. These macroeconomic explanations of observed decarbonization policy sequences complements others based on microeconomic considerations of efficiency in imperfect markets, distributional fairness, and economic interests in change.

Keywords: aggregate productivity; climate change; climate policy; energy and growth; sustainable growth; technological change (search for similar items in EconPapers)
JEL-codes: O33 O44 Q43 Q54 Q58 (search for similar items in EconPapers)
Date: 2023-11
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Persistent link: https://EconPapers.repec.org/RePEc:amz:wpaper:2023-26

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