Pesaran, M. Hashem; Smith, Ron; Yamagata, Takashi; … - In: Econometric Reviews 28 (2009) 6, pp. 495-521
Given nominal exchange rates and price data on N + 1 countries indexed by i = 0,1,2,…, N, the standard procedure for testing purchasing power parity (PPP) is to apply unit root or stationarity tests to N real exchange rates all measured relative to a base country, 0, often taken to be the...