Koedijk, Kees G.; Tims, Ben; Dijk, Mathijs A. van - In: Journal of International Money and Finance 30 (2011) 1, pp. 246-267
Recent studies of purchasing power parity (PPP) use panel tests that fail to take into account heterogeneity in the speed of mean reversion across real exchange rates. In contrast to several other severe restrictions of panel models and tests of PPP, the assumption of homogeneous mean reversion...