Discussion paper DP5728 Exploiting Regional Treatment Intensity for the Evaluation of Labour Market Policies Michael Lechner Markus Fröhlich 23 Jun 2006 Labour Economics C14 C21 J68
Discussion paper DP4304 Regional Treatment Intensity as an Instrument for the Evaluation of Labour Market Policies Michael Lechner Markus Fröhlich 23 Mar 2004 Labour Economics C14 J68
Discussion paper DP3158 Immigration and Heterogeneous Labour in Western Germany: A Labour Market Classification Based on Nonparametric Estimation Patrick Puhani Markus Fröhlich 22 Jan 2002 Labour Economics C14 J31 J61 J64 J68