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Irreversibilities and the Timing of Environmental Policy

Robert S. Pindyck

Massachusetts Institute of Technology (MIT) - Sloan School of Management; National Bureau of Economic Research (NBER)

January 2000

FEEM Working Paper No. 5.2000

The standard framework in which economists evaluate environmental policies is cost-benefit analysis, so policy debates usually focus on the expected flows of costs and benefits, or on the choice of discount rate. But this can be misleading when there is uncertainty over future outcomes, when there are reversibilities, and when policy adoption can be delayed. This paper shows how two kinds of uncertainty over the future costs and benefits of reduced environmental degradation, and over the evolution of an ecosystem interact with two kinds of irreversibilities - sunk costs associated with an environmental regulation, and "sunk benefits" of avoided environmental degradation - to affect optimal policy timing and design.

Number of Pages in PDF File: 32

Keywords: Environmental policy, irreversibilities, cost-benefit analysis, uncertainty, option value, global warming

JEL Classification: Q28, L51, H23

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Date posted: April 12, 2001  

Suggested Citation

Pindyck, Robert S., Irreversibilities and the Timing of Environmental Policy (January 2000). FEEM Working Paper No. 5.2000. Available at SSRN: http://ssrn.com/abstract=229009 or http://dx.doi.org/10.2139/ssrn.229009

Contact Information

Robert S. Pindyck (Contact Author)
Massachusetts Institute of Technology (MIT) - Sloan School of Management ( email )
50 Memorial Drive, E52-450
Cambridge, MA 02142
United States
617-253-6641 (Phone)
617-258-6855 (Fax)
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
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References:  23
Citations:  33
Footnotes:  8

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