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Despite a plethora of studies on purchasing power parity (PPP), those that take a cointegration approach have found … for cointegration between nominal exchange rate and relative prices that accounts for multiple structural breaks. We find … that for 14 out of 15 OECD countries, there is evidence of a cointegration relationship between nominal exchange rate and …
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Few authors have studied, either asymptotically or in finite samples, the size and power of seasonal unit root tests when the data generating process [DGP] is a non-stationary alternative aside from the seasonal random walk. In this respect, Ghysels, lee and Noh (1994) conducted a simulation...
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