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Assessing Target Zone Credibility: Mean Reversion and Devaluation Expectations in the ERM 1979-1992

  • Lars E.O. Svensson

The paper presents estimates of devaluation expectations for six EMS currencies relative to the Deutsche mark, for the period March 1979-May 1990. The estimation method is simple and operational, and consistently generates sensible results. The estimates are constructed by the adjusting interest rate differentials by subtracting estimated expected rates of depreciation within the exchange rate band. The adjustment is nontrivial because exchange rates within ERM bands display mean reversion rather than random walk (unit root) behavior. The adjustment is essential since expected rates of depreciation within the band are usually of about the same magnitude as interest rate differentials.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 3795.

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Date of creation: Jul 1991
Date of revision:
Publication status: published as European Economic Review, Vol. 37, p. 763-793 (1993)
Handle: RePEc:nbr:nberwo:3795
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  1. Gordon M. Bodnar & Leonardo Bartolini, 1992. "Target Zones and Forward Rates in a Model with Repeated Realignments," IMF Working Papers 92/22, International Monetary Fund.
  2. Donald J. Mathieson & Robert P. Flood & Andrew K. Rose, 1991. "An Empirical Exploration of Exchange Rate Target-Zones," IMF Working Papers 91/15, International Monetary Fund.
  3. Edin, Per-Anders & Vredin, Anders, 1993. "Devaluation Risk in Target Zones: Evidence from the Nordic Countries," Economic Journal, Royal Economic Society, vol. 103(416), pages 161-75, January.
  4. Lars E.O. Svensson, 1990. "The Foreign Exchange Risk Premium in a Target Zone with Devaluation Risk," NBER Working Papers 3466, National Bureau of Economic Research, Inc.
  5. Bertola, Giuseppe & Caballero, Ricardo, 1990. "Target Zones and Realignments," CEPR Discussion Papers 398, C.E.P.R. Discussion Papers.
  6. Rose, Andrew K & Svensson, Lars E O, 1991. "Expected and Predicted Realignments: The FF/DM Exchange Rate During the EMS," CEPR Discussion Papers 552, C.E.P.R. Discussion Papers.
  7. Bodnar, G., 1991. "Target Zones and Euro-Rates: A Model of Eurocurrency Interest Rate Differentials in the European Monetary System," Papers 91-03, Rochester, Business - General.
  8. Perron, Pierre, 1989. "The Great Crash, the Oil Price Shock, and the Unit Root Hypothesis," Econometrica, Econometric Society, vol. 57(6), pages 1361-1401, November.
  9. Alberto Giovannini, 1990. "European Monetary Reform: Progress and Prospects," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 21(2), pages 217-292.
  10. Peter C.B. Phillips, 1985. "Time Series Regression with a Unit Root," Cowles Foundation Discussion Papers 740R, Cowles Foundation for Research in Economics, Yale University, revised Feb 1986.
  11. Froot, Kenneth A & Thaler, Richard H, 1990. "Foreign Exchange," Journal of Economic Perspectives, American Economic Association, vol. 4(3), pages 179-92, Summer.
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