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Directed technical change, unilateral actions, and climate change

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  • Hiroaki Sakamoto

Abstract

In this paper, I investigate the implications of policy-induced technological change based on a multi-region variant of the directed technical change model developed by Acemoglu et al. (2012). On top of the pollution externality accompanied by carbon dioxide emission, different regions are connected through a global market where energy-related machine producing firms monopolistically compete with each other. One of the main findings of the analysis is that unilaterally introduced climate policies in developed regions might have only a slight short-term impact at a global level, but later will turn out to be a basis for low-carbon development in developing regions as well as developed regions. The simulation results indicate that an extension of the Kyoto protocol, if appropriately designed, can trigger a long-term shift in energy use at a global level even without active involvement of the United States. Moreover, if the United States decides to join the treaty and a fairly moderate abatement target is agreed upon among the member states, the similar level of long-term environmental consequence as in the universal climate regime can be replicated without explicit participation of developing regions.

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Bibliographic Info

Paper provided by Graduate School of Economics Project Center, Kyoto University in its series Discussion papers with number e-11-007.

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Length: 30 pages
Date of creation: Feb 2012
Date of revision:
Handle: RePEc:kue:dpaper:e-11-007

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Keywords: Climate change; directed technical change; unilateral policy; innovation; Kyoto protocol;

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  1. Popp, David, 2006. "ENTICE-BR: The effects of backstop technology R&D on climate policy models," Energy Economics, Elsevier, vol. 28(2), pages 188-222, March.
  2. Daron Acemoglu & Philippe Aghion & Leonardo Bursztyn & David Hemous, 2010. "The Environment and Directed Technical Change," Working Papers 2010.93, Fondazione Eni Enrico Mattei.
  3. Grimaud, André & Lafforgue, Gilles & Magné, Bertrand, 2011. "Climate change mitigation options and directed technical change: A decentralized equilibrium analysis," Resource and Energy Economics, Elsevier, vol. 33(4), pages 938-962.
  4. Eli Berman & Linda T. M. Bui, 2001. "Environmental Regulation And Productivity: Evidence From Oil Refineries," The Review of Economics and Statistics, MIT Press, vol. 83(3), pages 498-510, August.
  5. Acemoglu, Daron, 2002. "Directed Technical Change," Review of Economic Studies, Wiley Blackwell, vol. 69(4), pages 781-809, October.
  6. Adam B. Jaffe & Karen Palmer, 1996. "Environmental Regulation and Innovation: A Panel Data Study," NBER Working Papers 5545, National Bureau of Economic Research, Inc.
  7. Popp, David, 2004. "ENTICE: endogenous technological change in the DICE model of global warming," Journal of Environmental Economics and Management, Elsevier, vol. 48(1), pages 742-768, July.
  8. David Popp, 2002. "Induced Innovation and Energy Prices," American Economic Review, American Economic Association, vol. 92(1), pages 160-180, March.
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