Externality Policy Reform: A General Equilibrium Analysis

Sushama Murty () and R. Robert Russell

Journal of Public Economic Theory, 2005, vol. 7, issue 1, 117-150

Abstract: We characterize Pareto‐improving and equilibrium‐preserving policy reforms in a second‐best (Diamond/Mirrlees) world with a consumption externality. A counterintuitive finding is that, starting from an initial equilibrium with no direct quantity control on the externality, it is possible that all Pareto‐improving and equilibrium‐preserving directions of change require an increase in a negative externality. We provide intuition for these results by establishing a nexus between Guesnerie's approach to designing (tax) policy reforms and the standard Kuhn–Tucker technique for identifying the manifold of feasible Pareto‐optimal states, given the instruments available to the policy maker.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:bla:jpbect:v:7:y:2005:i:1:p:117-150

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