Directed Technical Change and Climate Policy
AbstractThis paper studies the cost effectiveness of climate policy if there are technology externalities. For this purpose, we develop a forward-looking CGE model that captures empirical links between CO2 emissions associated with energy use, directed technical change and the economy. We find the cost-effective climate policy to include a combination of R&D subsidies and CO2 emission constraints, although R&D subsidies raise the shadow value of the CO2 constraint (i.e. CO2 price) because of a strong rebound effect from stimulating innovation. Furthermore, we find that CO2 constraints differentiated toward CO2-intensive sectors are more cost effective than constraints that generate uniform CO2 prices among sectors. Differentiated CO2 prices, through technical change and concomitant technology externalities, encourage growth in the non-CO2 intensive sectors and discourage growth in CO2-intensive sectors. Thus, it is cost effective to let the latter bear relatively more of the abatement burden. This result is robust to whether emission constraints, R&D subsidies or combinations of both are used to reduce CO2 emissions.
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Bibliographic InfoPaper provided by Fondazione Eni Enrico Mattei in its series Working Papers with number 2006.81.
Date of creation: Jun 2006
Date of revision:
Directed Technical Change; Climate Policy; Computable General Equilibrium Model; R&D;
Find related papers by JEL classification:
- D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
- H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
- H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
- O33 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
- O38 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Government Policy
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-07-21 (All new papers)
- NEP-ENE-2006-07-21 (Energy Economics)
- NEP-ENV-2006-07-21 (Environmental Economics)
- NEP-PBE-2006-07-21 (Public Economics)
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- Gillingham, Kenneth T. & Newell, Richard G. & Pizer, William A., 2007.
"Modeling Endogenous Technological Change for Climate Policy Analysis,"
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- William A. Pizer & David Popp, 2007. "Endogenizing Technological Change: Matching Empirical Evidence to Modeling Needs," NBER Working Papers 13053, National Bureau of Economic Research, Inc.
- Pierre Besson & Nina Kousnetzoff, 2009. "Les impacts économiques du changement climatique : enjeux de modélisation," Working Papers 2009-36, CEPII research center.
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