Time consistency and optimal government policies in perfect foresight equilibrium |
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Authors: | Stephen J Turnovsky William A Brock |
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Institution: | Australian National University, Canberra, A.C.T. 2600, Australia;University of Chicago, Chicago IL 60637, USA |
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Abstract: | This paper develops a framework for determining optimal monetary and fiscal policies in perfect foresight equilibrium. Such equilibria have the property that all underlying demand and supply functions are derived from optimizing behavior, expectations are realized, and all markets clear. The time consistency of optimal policies derived under such circumstances is analyzed for a variety of alternative optimal policy problems. The general conclusion is that time consistency will prevail with respect to the optimization of any single policy instrument which does not appear explicitly in the indirect utility functions; otherwise time inconsistency will result. Monetary instruments are generally examples of the former, and fiscal instruments examples of the latter. |
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