Optimal Target Zones: How an Exchange Rate Mechanism Can Improve Upon Discretion
AbstractUsing Krugman's (1991) target zone model, we find an explicit, sub-game perfect solution for a central bank wishing to stabilize the exchange rate given proportional costs of intervention. We demonstrate, however, that precommitment to narrower bands would yield a welfare gain - which provides a theoretical rationale for an Exchange Rate Mechansim (ERM). Numerical simulations suggest that the optimal currency band with precommitment via an ERM is only half as wide as that under discretion.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 1031.
Date of creation: Oct 1994
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Other versions of this item:
- Miller, Marcus & Zhang, Lei, 1996. "Optimal target zones: How an exchange rate mechanism can improve upon discretion," Journal of Economic Dynamics and Control, Elsevier, vol. 20(9-10), pages 1641-1660.
- E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
- F31 - International Economics - - International Finance - - - Foreign Exchange
- F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
- F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission
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