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On the estimation of covariance matrices using panel data artificial regressions
Patacchini, Eleonora, (2003)
Unobservable factors and panel data sets : an investigation in the labour market
Patacchini, Eleonora, (2002)
Unobserved heterogeneity or measurement errors? : testing for correlated effects with measurement errors
Patacchini, Eleonora, (2007)