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Monopolistic Competition and Deviations from PPP

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Joshua Aizenman

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Abstract

The purpose of this paper is to explain deviations from PPP in an economy charaterived by a mononolistic competitive market structure in which pricing decisions incur costs. That lead producers to pre-set the price path for several periods. The paper derives an optimal pricing rule, including the optimal pre-setting horizon. It does so for a rational expectation equilibrium, characterized by staggered, unsynchronized price setting, for which the degree of staggering is endogenously determined. The discussion focuses on the critical role of the degree of domestic-foreign goods substitutability in explaining observable deviations from PPP.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 1552.

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Date of creation: Jan 1985
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Handle: RePEc:nbr:nberwo:1552

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  1. Dornbusch, Rudiger, 1976. "Expectations and Exchange Rate Dynamics," Journal of Political Economy, University of Chicago Press, vol. 84(6), pages 1161-76, December. [Downloadable!] (restricted)
  2. Frenkel, Jacob A, 1976. " A Monetary Approach to the Exchange Rate: Doctrinal Aspects and Empirical Evidence," Scandinavian Journal of Economics, Blackwell Publishing, vol. 78(2), pages 200-224.
  3. Taylor, John B, 1980. "Aggregate Dynamics and Staggered Contracts," Journal of Political Economy, University of Chicago Press, vol. 88(1), pages 1-23, February. [Downloadable!] (restricted)
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  4. Robert P. Flood & Robert J. Hodrick, 1986. "Optimal Price and Inventory Adjustment in an Open-Economy Model of the Business Cycle," NBER Working Papers 1089, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  5. Sheshinski, Eytan & Weiss, Yoram, 1977. "Inflation and Costs of Price Adjustment," Review of Economic Studies, Blackwell Publishing, vol. 44(2), pages 287-303, June. [Downloadable!] (restricted)
  6. Gray, Jo Anna, 1978. "On Indexation and Contract Length," Journal of Political Economy, University of Chicago Press, vol. 86(1), pages 1-18, February. [Downloadable!] (restricted)
  7. Mussa, Michael, 1976. " The Exchange Rate, the Balance of Payments and Monetary and Fiscal Policy under a Regime of Controlled Floating," Scandinavian Journal of Economics, Blackwell Publishing, vol. 78(2), pages 229-48.
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