Optimal Climate Change Policies When Governments Cannot Commit
AbstractThis paper examines the optimal design of climate change policies in the context where governments want to encourage the private sector to undertake significant immediate investment in developing cleaner technologies, but the carbon taxes and other environmental policies that could in principle stimulate such investment will be imposed over a very long future. The conventional claim by environmental economists is that environmental policies alone are sufficient to induce firms to undertake optimal investment. However this argument requires governments to be able to commit to these future taxes, and it is far from clear that governments have this degree of commitment. We assume instead that governments cannot commit, and so both they and the private sector have to contemplate the possibility of there being governments in power in the future that give different (relative) weights to the environment. We show that this lack of commitment has a significant asymmetric effect. Compared to the situation where governments can commit it increases the incentive of the current government to have the investment undertaken, but reduces the incentive of the private sector to invest. Consequently governments may need to use additional policy instruments – such as R&D subsidies – to stimulate the required investmen
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Bibliographic InfoPaper provided by Department of Economics, University of St. Andrews in its series Discussion Paper Series, Department of Economics with number 200909.
Date of creation: 15 Aug 2009
Date of revision:
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Find related papers by JEL classification:
- H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
- Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters
- Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation
- Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-09-05 (All new papers)
- NEP-ENE-2009-09-05 (Energy Economics)
- NEP-ENV-2009-09-05 (Environmental Economics)
- NEP-MIC-2009-09-05 (Microeconomics)
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.:
- Ulph, Alistair & Ulph, David, 1997. "Global Warming, Irreversibility and Learning," Economic Journal, Royal Economic Society, vol. 107(442), pages 636-50, May.
- Stavins, Robert & Jaffe, Adam & Newell, Richard, 2000.
"Technological Change and the Environment,"
dp-00-47, Resources For the Future.
- Adam B. Jaffe & Richard G. Newell & Robert N. Stavins, 2000. "Technological Change and the Environment," NBER Working Papers 7970, National Bureau of Economic Research, Inc.
- Stavins, Robert & Jaffe, Adam & Newell, Richard, 2000. "Technological Change and the Environment," Working Paper Series rwp00-002, Harvard University, John F. Kennedy School of Government.
Blog mentionsAs found by EconAcademics.org, the blog aggregator for Economics research:
- Climate change and non-committal governments
by Economic Logician in Economic Logic on 2009-10-08 14:29:00
- Michael Hoel, 2010. "Climate Change and Carbon Tax Expectations," CESifo Working Paper Series 2966, CESifo Group Munich.
- Nicholas Stern, 2009. "Imperfections in the Economics of Public Policy, Imperfections in Markets, and Climate Change," Working Papers 2009.106, Fondazione Eni Enrico Mattei.
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