Discussion paper DP8537 Education and Invention Otto Toivanen Lotta Väänänen 1 Aug 2011 Industrial Organization I21 J24 O31
Discussion paper DP6387 Returns to Apprenticeship Training in Austria: Evidence from Failed Firms Jorn-Steffen Pischke Rudolf Winter-Ebmer Josef Fersterer 13 Jul 2007 Labour Economics J24 J31
Discussion paper DP5105 Zero Returns to Compulsory Schooling in Germany: Evidence and Interpretation Jorn-Steffen Pischke Till von Wachter 23 Jun 2005 Labour Economics I21 J24 J31