A Bayesian analysis of the unit root in real exchange rates
We propose a posterior odds analysis of the hypothesis of a unit root in real exchange rates. From a Bayesian viewpoint the random walk hypothesis for real exchange rates is a posteriori as probable as a stationary AR(1) process for four out of eight time series investigated. The French franc/German mark is clearly stationary, while the Japanese yen/US dollar is most likely a random walk. In contrast, classical tests are unable to reject the unit root for any of these series.
|, , ,|
|Journal of Econometrics|
|Organisation||Erasmus School of Economics|
Schotman, P.C, & van Dijk, H.K. (1991). A Bayesian analysis of the unit root in real exchange rates. Journal of Econometrics. doi:10.1016/0304-4076(91)90014-5