Setting the Initial Time-Profile of Climate Policy: The Economics of Environmental Policy Phase-Ins / Roberton C. Williams III.

Format:

Book

Author/Creator:

Williams, Roberton C, III.

Contributor:

National Bureau of Economic Research.

Series:

Working Paper Series (National Bureau of Economic Research) no. w16120.

NBER working paper series no. w16120

Language:

English

Physical Description:

1 online resource: illustrations (black and white);

Other Title:

Setting the Initial Time-Profile of Climate Policy

Place of Publication:

Cambridge, Mass. National Bureau of Economic Research 2010.

Summary:

This paper considers the question of under what circumstances a new environmental regulation should "phase in" gradually over time, rather than being immediately implemented at full force. The paper focuses particularly on climate policy, though its insights are more general. It shows that while adjustment costs provide a strong efficiency argument for phasing in a quantity-based regulation (or allowing intertemporal flexibility that creates the equivalent of a phase-in), this argument does not apply for price-based regulation. Indeed, in many cases, it will be more efficient to do just the opposite, setting an initially very high emissions price that then falls as the policy phases in. This difference in results comes not from any fundamental difference between price and quantity policies: under either policy, the efficient quantity of abatement rises over time, while the efficient price stays constant or even falls. But other considerations, such as distributional concerns or monitoring and enforcement issues, may still argue for a gradual phase-in even for a price-based policy.

Notes:

Print version record

June 2010.