90 IZA Discussion Papers
IZA Discussion Paper No. 6407
published in: German Economic Review, 2014, 15 (2), 287-328
IZA Discussion Paper No. 6082
published in: Eastern Economic Journal, 2014, 40, 560–582
IZA Discussion Paper No. 5986
published in: Research Policy, 2012, 41 (5), 913–927
IZA Discussion Paper No. 5986
published in: Research Policy, 2012, 41 (5), 913–927
IZA Discussion Paper No. 5986
published in: Research Policy, 2012, 41 (5), 913–927
IZA Discussion Paper No. 5405
published in: Research Policy, 2012, 41 (1), 13-23
IZA Discussion Paper No. 5405
published in: Research Policy, 2012, 41 (1), 13-23
IZA Discussion Paper No. 5367
published as 'The Awarding of PhDs in the United States and Canada: War, the Draft, and Other Economic Determinants' in: Applied Economics, 2015, 47 (28), 2939 - 2958
IZA Discussion Paper No. 4800
published in: Journal of Economic Perspectives, 2010, 24 (2), 3-30
IZA Discussion Paper No. 4785
published in: Kyklos, 2010, 63 (4), 479-494; cited in The Economist, February 2011
IZA Discussion Paper No. 4445
published in: Charles T. Clotfelter (ed.), American Universities in a Global Market, NBER, 2010
IZA Discussion Paper No. 4364
published in: Schmollers Jahrbuch: Zeitschrift für Wirtschafts- und Sozialwissenschaften / Journal of Applied Social Science Studies, 2010, 130 (1), 133-142
IZA Discussion Paper No. 4313
published in: Scientometrics, 2010, 84 (1), 99 - 113
IZA Discussion Paper No. 4313
published in: Scientometrics, 2010, 84 (1), 99 - 113
IZA Discussion Paper No. 4292
published in: Jahrbücher für Nationalökonomie und Statistik, 2009, 229 (5), 523-543
IZA Discussion Paper No. 3964
published in: Cliometrica, 2010, 4(2), 113-139
IZA Discussion Paper No. 3898
published in: Scientometrics, 2010, 84 (3), 621-637
IZA Discussion Paper No. 3689
published as "How Reliable is the Quarterly National Household Survey for Migration Research?" in: Economic and Social Review, 2008, 39 (3), 191-205
IZA Discussion Paper No. 3418
published in: Région et Développement, 2008, 27(1), 161-191