This article aims at testing real interest parity (RIP) by using nonlinear unit root tests. The results from Kapetanios et al. (2003) demonstrated that the adjustment of ASEAN-5 real interest rates towards real interest rates in Japan and the US follows a nonlinear (stationary) process. Overall,...

Using the recently developed linearity test and nonlinear unit root test, this study shows that the income gaps of Finland, Norway and Sweden with respect to Denmark are nonlinear but stationary with no significant trend effect, implying the Nordic countries have already attained steady state of...

This study finds that Purchasing Power Parity (PPP) holds in the long-run for Azerbaijan, Kazakhstan and Kyrgyzstan, based on Breitung's (2001) rank tests for cointegration. Results from further analysis indicates that nominal exchange rates and relative prices are nonlinearly interrelated....

The finding of nonlinear cointegration between Asian exchange rates with the corresponding relative prices and aggregate price levels based on Breitung's (2001) nonparametric rank tests reinforces previous validations of purchasing power parity (PPP) by the parametric testing procedures. Hence,...