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American Economic Review Vol. 111 No. 5 2021

Efficiency and Equity Impacts of Energy Subsidies

Robert W. Hahn1; Robert Metcalfe2

1 Smith School of Enterprise and the Environment, University of Oxford, and the Technology Policy Institute (email: ) · 2 Questrom School of Business, Boston University, and NBER (email: )

Abstract

Economic theory suggests that energy subsidies can lead to excessive consumption and environmental degradation. However, the precise impact of energy subsidies is not well understood. We analyze a large energy subsidy: the California Alternate Rates for Energy (CARE). CARE provides a price reduction for low-income consumers of natural gas and electricity. Using a natural field experiment, we estimate the price elasticity of demand for natural gas to be about −0.35 for CARE customers. An economic model of this subsidy yields three results. First, the natural gas subsidy appears to reduce welfare. Second, the economic impact of various policies, such as cap-and-trade, depends on whether prices for various customers move closer to the marginal social cost. Third, benefits to CARE customers need to increase by 6 percent to offset the costs of the program.

DOI
10.1257/aer.20180441
Volume
111
Issue
5
Pages
1658-1688
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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