This paper uses a recently suggested test for unit roots in panels of time series data (Maddala and Wu, 1999) to consider the Purchasing Power Parity hypothesis. The major innovation of this test is that it allows both the testing of unit root null, using the ADF test, and the stationarity null,...

In this paper a likelihood-based multivariate unit root testing framework is utilized to test whether the real exchange rates of G10 countries are non-stationary. The framework uses a likelihood ratio statistic which combines the information across all involved countries while retaining...

This study tests for long-run relative purchasing power parity among a sample of 27 African less developed countries. For this purpose, a new test advocated by Im and co-workers is employed which allows one to test for unit roots in heterogeneous panel datasets. This is known as the t-bar test,...

Within the Balassa-Samuelson framework, productivity growth can lead to time trends in real exchange rates. The relative price of tradables and nontradables can undergo a significant change for countries experiencing dramatic productivity growth. This suggests that real exchange rates of...

In this letter we model the deviation of the nominal exchange rate from the long run equilibrium level predicted by monetary fundamentals in a nonlinear framework consistent with the presence of transaction costs. We consider a novel approach that allows for the joint testing of nonlinearity and...

The presence of transaction costs in trading implies a non-linear adjustment process of real exchange rates towards Purchasing Power Parity (PPP). This may make the traditional tests for PPP using a linear framework, which generally tend to refute the PPP hypothesis, unreliable. This study...

Most economists intuitively consider purchasing power parity (PPP) to be true. Nevertheless, quite surprisingly, the empirical literature is not very supportive for PPP. In this paper, however, we find evidence in favor of PPP using a new test. The test is embedded in a Markov regime-switching...

We find nonlinear mean-reverting tendencies in Southeast Asian currencies by applying the newly developed nonlinear unit root test by Park and Shintani (2005). First, with the U.S. dollar as the numeraire currency, we find that 63% of the real exchange rates of Southeast Asian currencies turn...

The base currency effect in the PPP literature refers to the stylised fact that tests on real exchange rates denominated in German marks are more likely to support mean reversion than analogous tests on US dollar rates. Using a panel of 19 OECD currencies and monthly data, 1973-97, three panel...