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Can Uncertainty Justify Overlapping Policy Instruments to Mitigate Emissions?

Abstract : This article constitutes a new contribution to the analysis of overlapping instruments to cover the same emission sources. Using both an analytical and a numerical model, we find that when the risk that the CO2 price drops to zero and the political unavailability of a CO2 tax (at least in the European Union) are taken into account, it can be socially beneficial to implement an additional instrument encouraging the reduction of emissions, for instance a renewable energy subsidy. Our analysis has both a practical and a theoretical purpose. It aims at giving economic insight to policymakers in a context of increased uncertainty concerning the future stringency of the European Emission Trading Scheme. It also gives another rationale for the use of several instruments to cover the same emission sources, and shows the importance of accounting for corner solutions in the definition of the optimal policy mix.
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https://hal-enpc.archives-ouvertes.fr/hal-00801927
Contributeur : Oskar Lecuyer <>
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Dernière modification le : samedi 3 octobre 2020 - 03:03:43
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Oskar Lecuyer, Philippe Quirion. Can Uncertainty Justify Overlapping Policy Instruments to Mitigate Emissions?. FEEM Working Paper, 2012, pp.No. 91.2012. ⟨hal-00801927⟩

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