This paper examines whether deviations from PPP are stationary in the presence of nonlinearity, and whether the adjustment toward PPP is symmetric from above and below. Using alternative nonlinear models, our results support mean reversion and asymmetric adjustment dynamics. We find differences...

Using VAR, a large literature claims to find evidence of some form of Dornbuschovershooting. But the evidence is fragile in the sense of Leamer. The literature uses the wrong test for overshooting, unusually narrow confidence intervals and questionable shocks. In addition, it is difficult to...