We propose to combine recent developments in univariate and mul- tivariate unit root testing in order to construct a more powerful panel unit root test. We extend the GLS-detrending procedure of Elliott, Rothenberg and Stock (1996) to a panel Augmented Dickey-Fuller test. The finite sample power...

Remittances are private monetary transfers yet the rapidly growing literature on the subject seems to forget their monetary nature and thus ignore the role that exchange rate regimes play in determining the effect remittances have on a recipient economy. This paper uses a theoretical model and...

Many economic theories connecting the real interest rate and the per-capita consumption growth rate require that both rates evolve together over time. This paper investigates whether these rates present similar stationary behavior for the seven most industrialized countries over the 1957-2005...

Recently, Taylor (2002) concludes that long run PPP held over the 20th century for a set of 19 long term real exchange rates. We argue that this conclusion is quite sensitive to the use of sub-optimal lag selection in unit root tests. Using superior lag selection methods,we find that long run...

This paper proposes a version of the DF-GLS test that incorporates up to two breaks in the intercept, namely the DF-GLSTB test. While the asymptotic properties of the DF-GLS test remain valid, the presence of changes in the intercept has an impact on the small sample properties of the test....

Using median-unbiased estimation, recent research has questioned the validity of Rogoff’s “remarkable consensus” of 3-5 year half-lives of deviations from PPP. These half-life estimates, however, are based on estimates from regressions where the resulting unit root test has low power. We...

We propose a new pooled panel unit root test allowing for serial and contemporaneous correlation. The new test combines Elliott, Rothenberg and Stock's (1996) local-to-unity transformation with a pooled panel ADF test. As initially advocated by O'Connell (1998), the new test accounts for...

This article analyzes the hysteresis hypothesis in the unemployment rates of the four “French overseas regions” (Guadeloupe, Martinique, Guyana, Reunion) [FORs] over the period 1993-2008. We use standard univariate and panel unit root tests, among them Choi(2006) and Lopez (2009) that...

This paper investigates the PPP hypothesis within industrialized countries for the post-Bretton Woods period via two panel unit root tests, the DF-GLS-SUR and the ADF-SUR tests, respectively developed by Lopez (2003) and Levin, Lin and Chu (2002). Both approaches allow for data specific serial...

We investigate convergence towards Purchasing Power Parity (PPP) within the Euro Zone and between the Euro Zone and its main partners using panel data methods that incorporate serial and contemporaneous correlation. We find strong rejections of the unit root hypothesis, and therefore evidence of...