Seminal work by Weitzman (1974) revealed that prices are preferred to quantities when marginal benefits are relatively flat compared to marginal costs. We extend this comparison to indexed policies, where quantities are proportional to an index, such as output. We find that policy preferences hinge on additional parameters describing the first and second moments of the index and the ex post optimal quantity level. When the ratio of these variables’ coefficients of variation divided by their correlation is less than two, indexed quantities are preferred to fixed quantities. A slightly more complex condition determines when indexed quantities are preferred to prices. Applied to the case of climate change, we find that quantities indexed to GDP are preferred to fixed quantities for about half of the 19 largest emitters, including the United States and China, while (consistent with previous work) prices dominate for all countries.
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Paper provided by Resources For the Future in its series Discussion Papers with number
dp-06-32.
Richard G. Newell & William A. Pizer, 2008.
"Indexed Regulation,"
NBER Working Papers
13991, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
Find related papers by JEL classification: Q28 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Government Policy D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty C68 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - Computable General Equilibrium Models
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Newell, Richard G. & Pizer, William A., 2006.
"Indexed Regulation,"
Discussion Papers
dp-06-32, Resources For the Future.
[Downloadable!]
Other versions:
Richard G. Newell & William A. Pizer, 2008.
"Indexed Regulation,"
NBER Working Papers
13991, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
Cited by: (explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)
Richard G. Newell & William A. Pizer, 2008.
"Indexed Regulation,"
NBER Working Papers
13991, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
Other versions: