Modeling Deviations from Purchasing Power Parity (PPP)
The volatility of the exchange rate under floating rates can be interpreted in terms of approaches that allow for short term price rigidity as well as in terms of models that consider the magnification effect of new information. This paper combines the two approaches into a unified framework,where the degree to which prices are rigid is determined endogenously. It is shown that the variance of percentage deviations from ppp has an upper bound,and that the relationship between the variance of deviations from ppp and the aggregate variability is not monotonic. Allowing for a short-run Phillips curve with optimal indexation, it is also demonstrated that a higher price flexibility will reduce deviations from ppp and output volatility.
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Volume (Year): 25 (1984)
Issue (Month): 1 (February)
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References listed on IDEAS
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- Lawrence H. Officer, 1982. "The Purchasing-Power-Parity Theory of Gerrard de Malynes," History of Political Economy, Duke University Press, vol. 14(2), pages 256-259, Summer.
- Brunner, Karl & Meltzer, Allan H., 1977. "Stabilization of the domestic and international economy," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 5(1), pages 1-6, January.
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- McCallum, Bennett T, 1977. "Price-Level Stickiness and the Feasibility of Monetary Stabilization Policy with Rational Expectations," Journal of Political Economy, University of Chicago Press, vol. 85(3), pages 627-34, June.
- Dornbusch, Rudiger, 1976. "Expectations and Exchange Rate Dynamics," Journal of Political Economy, University of Chicago Press, vol. 84(6), pages 1161-76, December.
- Logue, Dennis E & Willett, Thomas D, 1976. "A Note on the Relation between the Rate and Variability of Inflation," Economica, London School of Economics and Political Science, vol. 43(17), pages 151-58, May.
- Nancy Peregrim Marion, 1982. "The Exchange-Rate Effects of Real Disturbances with Rational Expectations and Variable Terms of Trade," Canadian Journal of Economics, Canadian Economics Association, vol. 15(1), pages 104-18, February.
- Gray, Jo Anna, 1976. "Wage indexation: A macroeconomic approach," Journal of Monetary Economics, Elsevier, vol. 2(2), pages 221-235, April.
- Robert P. Flood & Nancy Peregrim Marion, 1982. "The Transmission of Disturbances under Alternative Exchange-Rate Regimes with Optimal Indexing," The Quarterly Journal of Economics, Oxford University Press, vol. 97(1), pages 43-66.
- Richard C. Marston, 1982. "Wages, Relative Prices and the Choice between Fixed and Flexible Exchange Rates," Canadian Journal of Economics, Canadian Economics Association, vol. 15(1), pages 87-103, February.
- Richard C. Marston, 1981. "Wages, Relative Prices, and the Choice between Fixed and Flexible Exchange Rates," NBER Working Papers 0793, National Bureau of Economic Research, Inc.
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