Arcand, Jean-Louis; d'Hombres, Beatrice - Volkswirtschaftliche Fakultät, … - 2006
paper, we show that all existing tests for separation using panel data are potentially biased towards rejecting the null … on which the test for separation is based cannot be identifed in most panel datasets following the usual covariance … that are invariant along one dimension of a panel can be identifed through the use of covariance transformations of other …