Abstract
This article uses multicountry purchasing power parity (PPP) tests to study the success of the European monetary system (EMS) in creating a successful currency area for a stable European monetary union. If the EMS has sufficiently integrated the fundamentals within the European Union, then real exchange rates between member countries will share a common stationary trend when denominated by a common outside currency. Previous research using two-country PPP tests have been inadequate in explaining the nonstationary nature of real exchange rates between the EMS countries and nonmember countries. The use of generalized PPP tests can show that even though individual exchange rates within the EMS may appear to be nonstationary with respect to outside countries, some of them will combine to form a currency union with a stable stationary trend.
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Bernstein, D.J. Generalized purchasing power parity and the case of the European Union as a successful currency area. Atlantic Economic Journal 28, 385–395 (2000). https://doi.org/10.1007/BF02298392
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DOI: https://doi.org/10.1007/BF02298392