This study applies the Sequential Panel Selection Method (SPSM) proposed by Chortareas and Kapetanios (2009) to test the validity of the long-run Purchasing Power Parity (PPP) for a sample of 18 African countries over the period January 1985 to September 2008. SPSM classifies the whole panel...

This study applies a simple and powerful nonlinear unit root test, proposed by Sollis (2009), to test the validity of long-run purchasing power parity (PPP) in a sample of ASEAN countries. The empirical results indicate that PPP only holds for three of these ASEAN countries studied, and the...

In this study, the panel Seemingly Unrelated Regressions Augmented Dickey-Fuller (SURADF) tests advanced by Breuer et al. (2001) are used to test the validity of Purchasing Power Parity (PPP) for 15 countries belonging to the Common Market for Eastern and Southern Africa (COMESA) and the...