Discussion Paper - Harvard Project on Climate Agreements

The Future of U.S. Carbon-Pricing Policy

| May 2019

Abstract

There is widespread agreement among economists — and a diverse set of other policy analysts — that at least in the long run, an economy-wide carbon pricing system will be an essential element of any national policy that can achieve meaningful reductions of CO2 emissions cost-effectively in the United States. There is less agreement, however, among economists and others in the policy community regarding the choice of specific carbon-pricing policy instrument, with some supporting carbon taxes and others favoring cap-and-trade mechanisms. This prompts two important questions. Which — if either — of the two major approaches to carbon pricing is superior in terms of relevant criteria, including but not limited to efficiency, cost-effectiveness, and distributional equity? And which of the two approaches is more likely to be adopted in the future in the United States? This paper addresses these questions by drawing on both normative and positive theories of policy instrument choice as they apply to U.S. climate change policy, and draws extensively on relevant empirical evidence. The paper concludes with a look at the path ahead, including an assessment of how the two carbon-pricing instruments can be made more politically acceptable.

Robert Stavins
Harvard University

For more information on this publication: Please contact Harvard Project on Climate Agreements
For Academic Citation: Stavins, Robert. “The Future of U.S. Carbon-Pricing Policy.” Discussion Paper, 2019-95, Harvard Project on Climate Agreements, May 2019.

The Author

Robert N. Stavins