The authors document a robust and interesting relationship between the real domestic price of oil and real effective exchange rates for Germany, Japan and the United States. They explain why they think the real oil price captures exogenous terms-of-trade shocks and why such shocks could be the...

Simulation evidence is presented on the finite sample properties of two tests for stationarity recently proposed by Kwiatkowski, Phillips and Schmidt (1991) and Park (1990). Unlike earlier unit-root tests, these test the null of stationarity against the alternative of a unit root, thereby...