Mechanisms for Abating Global Emissions Under Uncertainty
We give theoretical, partial equilibrium comparisons of a tax with thresholds, tradable targets ('emissions trading' or ET), and non-tradable targets, as mechanisms to abate well-mixed ('global') emissions from many parties, under independent uncertainties in both future business-as-usual emissions and marginal abatement costs. All three mechanisms are revenue-neutral, and use flexible thresholds or targets indexed continuously to parties' activity levels. We analyse both risk-neutral or risk-averse behaviour. Key theoretical results are that because of emissions uncertainty, there is no simple Weitzman (1974) rule for choosing between 'prices' (a tax) to 'quantities' (ET); under ET, marginal abatement cost uncertainty is a benefit, compared to certainty; and under risk aversion, any mechanism with more expected welfare also gives more expected abatement. We apply our theory to global greenhouse gas abatement in 2020, using an 18-region numerical simulation model with new uncertainty estimates. Key global, empirical results are that under either risk behaviour, a tax dominates ET, which hugely dominates non-tradable targets; and under risk aversion, an optimally indexed tax gives about 60% more welfare and 30% more abatement than unindexed ET, while optimally indexed ET achieves about two-fifths of these improvements.
|Date of creation:||Aug 2006|
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- Martin L. Weitzman, 1998.
Harvard Institute of Economic Research Working Papers
1843, Harvard - Institute of Economic Research.
- A. Denny Ellerman & Ian Sue Wing, 2003. "Absolute versus intensity-based emission caps," Climate Policy, Taylor & Francis Journals, vol. 3(sup2), pages S7-S20, December.
- Peter Bohm & Björn Carlén, 2002. "A Cost-effective Approach to Attracting Low-income Countries to International Emissions Trading: Theory and Experiments," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 23(2), pages 187-211, October.
- M. L. Weitzman, 1973.
"Prices vs. Quantities,"
106, Massachusetts Institute of Technology (MIT), Department of Economics.
- Farrow, Scott, 1995. "The dual political economy of taxes and tradable permits," Economics Letters, Elsevier, vol. 49(2), pages 217-220, August.
- Carlo Carraro & Gilbert E. Metcalf, 2000.
"Behavioral and Distributional Effects of Environmental Policy: Introduction,"
Discussion Papers Series, Department of Economics, Tufts University
0011, Department of Economics, Tufts University.
- Carlo Carraro & Gilbert E. Metcalf, 2000. "Behavioral and Distributional Effects of Environmental Policy Introduction," NBER Working Papers 7648, National Bureau of Economic Research, Inc.
- Toman, Michael, 2003. "Economic Analysis and the Formulation of U.S. Climate Policy," Discussion Papers dp-02-59, Resources For the Future.
- Bovenberg, A.L. & Goulder, L.H., 1996. "Optimal environmental taxation in the presence of other taxes : General equilibrium analyses," Other publications TiSEM 5d4b7517-c5c8-4ef6-ab76-3, Tilburg University, School of Economics and Management.
- A. Lans Bovenberg & Lawrence H. Goulder, 2000.
"Neutralizing the Adverse Industry Impacts of CO2 Abatement Policies: What Does it Cost?,"
NBER Working Papers
7654, National Bureau of Economic Research, Inc.
- A. Lans Bovenberg & Lawrence H. Goulder, 2001. "Neutralizing the Adverse Industry Impacts of CO2 Abatement Policies: What Does It Cost?," NBER Chapters, in: Behavioral and Distributional Effects of Environmental Policy, pages 45-90 National Bureau of Economic Research, Inc.
- Goulder, Lawrence & Bovenberg, A. Lans, 2000. "Neutralizing the Adverse Industry Impacts of CO2 Abatement Policies: What Does It Cost?," Discussion Papers dp-00-27, Resources For the Future.
- A. Lans Bovenberg & Lawrence H. Goulder, 1994.
"Optimal Environmental Taxation in the Presence of Other Taxes: General Equilibrium Analyses,"
NBER Working Papers
4897, National Bureau of Economic Research, Inc.
- Bovenberg, A Lans & Goulder, Lawrence H, 1996. "Optimal Environmental Taxation in the Presence of Other Taxes: General-Equilibrium Analyses," American Economic Review, American Economic Association, vol. 86(4), pages 985-1000, September.
- Nordhaus, William D & Yang, Zili, 1996. "A Regional Dynamic General-Equilibrium Model of Alternative Climate-Change Strategies," American Economic Review, American Economic Association, vol. 86(4), pages 741-65, September.
- Pizer, William A., 2002. "Combining price and quantity controls to mitigate global climate change," Journal of Public Economics, Elsevier, vol. 85(3), pages 409-434, September.
- repec:ner:tilbur:urn:nbn:nl:ui:12-73560 is not listed on IDEAS
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