The evaluation of labor market policies has become an important issue in many Europeancountries. In recent years, a number of them have opened their administrative databases forevaluation studies. The advantages of administrative data are straightforward: they areaccurate, contain a large number...

This paper constructs a new estimator for large covariance matrices by drawing a bridge between the classic Stein (1975) estimator in finite samples and recent progress under large-dimensional asymptotics. The estimator keeps the eigenvectors of the sample covariance matrix and applies shrinkage...