restristions for standard GMM estimators in autoregressive panel data models. A comparison is made with recent test proposals based …

Panel or grouped data are often used to allow for unobserved individual heterogeneity in econometric models via fixed … effects. In this paper, we discuss identification of a panel data model in which the unobserved heterogeneity both enters …

; Panel data …

This paper proposes a new panel unit root test based on the generalized method of moments approach for panels with a …

. It shows how a panel of cointegrated VARs can be transformed in a set of independent individual models. The likelihood … function of the transformed panel is the sum of the likelihood functions of the individual Cointegrated VARs (CVAR) models. A …. From these empirical distributions two panel trace test statistics are constructed. The satisfying small sample properties …

This paper develops a simple test à la Pesaran (2007) for the null hypothesis of stationarity in heterogeneous panel …

The current paper considers the asymptotic local power of second-generation panel unit root tests that are robust to …

This paper analyzes the properties of panel unit root tests based on recursively detrended data. The analysis is …