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Climate change mitigation options and directed technical change: A decentralized equilibrium analysis

Listed author(s):
  • GRIMAUD Andre
  • LAFFORGUE Gilles
  • MAGNE Bertrand

The paper considers a climate change growth model with three R&D sectors dedicated to energy, backstop and CCS (Carbon Capture and Storage) efficiency. First, we characterize the set of decentralized equilibria: A particular equilibrium is associated to each vector of public tools which includes a carbon tax and a subsidy to each R&D sector. Moreover, we show that it is possible to compute any equilibrium as the solution of a maximization program. Second, we solve the first-best optimum problem and we implement it by computing the vector of optimal tools. Finally, we illustrate the theoretical model using some calibrated functional specifications. In particular, we investigate the effects of various combinations of public policies (including the optimal ones) by determining the deviation of each corresponding equilibrium from the "laisser-faire" benchmark.

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File URL: http://www2.toulouse.inra.fr/lerna/travaux/cahiers2009/09.20.296.pdf
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Paper provided by LERNA, University of Toulouse in its series LERNA Working Papers with number 09.20.296.

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Date of creation: Jul 2009
Handle: RePEc:ler:wpaper:09.20.296
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