Nonparametric cointegration analysis of real exchange rates

This study indirectly addresses the issue of potential nonlinearities in real exchange rate adjustment for 18 OECD economies 1973-1998 using recent developments in the theory of nonparametric cointegration. While the standard Johansen tests yield mixed evidence, the results from a new nonparametric approach are clearly supportive of real exchange rate stationarity. Since the latter approach allows for a relatively general data-generating process, the findings are consistent with nonlinear mean reversion.