We examine Granger causality among the exchange rates of eight East Asian economies prior to the Asian crisis. We adopt as our general model Engle and Gau’s (1997) “official band†model, and use daily bilateral US dollar exchange rate data during January 1991-July 1997. Our...

The important concept of purchasing power parity (PPP) has a number of practical implications. Our central objective is to examine the stationarity of Turkey’s real exchange rates to test for the empirical validity of PPP. Our results from conventional univariate unit root tests fail to...