performance of homogenous panel unit root tests in the presence of permanent volatility shifts. It is shown that in this case …, panel unit root tests derived under time invariant innovation variances lose control over actual significance levels while … hypothesis. -- Panel unit root tests ; variance breaks ; cross sectional dependence ; Fisher hypothesis …

Standard panel unit root tests (PURTs) are not robust to breaks in innovation variances. Consequently, recent papers …

Standard panel unit root tests (PURTs) are not robust to breaks in innovation variances. Consequently, recent papers …

. The current account imbalances are found to be bounded nonstationary for most OECD economies. Panel based test statistics …

two of the most discussed issues triggered by the so called Feldstein-Horioka puzzle. Based on panel data we introduce a …

of the most discussed issues triggered by the so called Feldstein-Horioka puzzle. Based on panel data we introduce a new …

static panel models. Thirdly, via scatter diagrams of cross section specific estimates we observe a different time evolution …