Optimal policy with probabilistic equilibrium selection
AbstractThis paper introduces an approach to the study of optimal government policy in economies characterized by a coordination problem and multiple equilibria. Such models are often criticized as not being useful for policy analysis because they fail to assign a unique prediction to each possible policy choice. We employ a selection mechanism that assigns, ex ante, a probability to each equilibrium indicating how likely it is to obtain. With this, the optimal policy is well defined. We show how such a mechanism can be derived as the natural result of an adaptive learning process. This approach generates a theory of how government policy affects the process of equilibrium selection; we illustrate this theory by applying it to problems related to the choice of technology and the optimal sales tax on Internet commerce.
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Bibliographic InfoPaper provided by Federal Reserve Bank of Richmond in its series Working Paper with number 01-03.
Date of creation: 2001
Date of revision:
This paper has been announced in the following NEP Reports:
- NEP-ALL-2004-02-10 (All new papers)
- NEP-DGE-2002-02-15 (Dynamic General Equilibrium)
- NEP-PKE-2002-02-15 (Post Keynesian Economics)
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