This paper employs a new methodology for measuring the contribution of growth and interest rate differentials to the half-life of deviations from Purchasing Power Parity (PPP). Our method is based on directly comparing the impulse response function of a VAR model, where the real exchange rate is...

This paper suggests that IV estimators, utilizing irrelevant but persistent instruments mai produce reliable inferences, in small samples, in cases where the endogenous variables contaii autoregressive roots near unity. In such cases, these estimators appear to outperform IV estimator: with...