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The Importance of STEM: High School Knowledge, Skills and Occupations in an Era of Growing Inequality, Research Policy, Vol. 50(7), 2021 (Joint with Sandra E. Black, Ziwei He, Koit Hung, and Chandra Muller). Download at DOI:

The Impact of Immigration on Competing Natives’ Wages: Evidence from German Reunification, Review of Economics and Statistics, Vol. 102(1), 2020 (Joint with Susanne Prantl). Download at DOI:

From the `Sick Man of Europe’ to the `Economic Superstar’: Germany’s Resurgent Economy, Journal of Economic Perspectives, Vol. 28(1), 2014 (Joint with Christian Dustmann, Bernd Fitzenberger and Uta Schönberg). Download at

Technological Change and the Skill Content of Women’s Work, Review of Economics and Statistics, Vol. 92(1), 2010 (Joint with Sandra E. Black). Download at DOI:

How does entry regulation influence entry into self-employment and occupational mobility?, Economics of Transition,  Vol. 17(4), 2009 (Joint with Susanne Prantl). Download at

The Returns to Pencil Use Revisited, Industrial and Labor Relations Review, 61(4), 2008. Download at

Technical Change, Job Tasks and Rising Educational Demands: Looking Outside the Wage Structure, Journal of Labor Economics, 24(2), 2006. Download at

Managerial Ownership and Firm Performance in German Small and Medium-Sized Private Enterprises, German Economic Review, 7(2), 2006 (Joint with Elisabeth Müller). Download at DOI:


Refugee-Specific Government Aid, Institutional Embeddedness and Child Refugees’ Economic Success Later in Life: Evidence from Post-WWII Refugees (Joint with Sandra E. Black, Hannah Liepmann, and Camille Remigereau; this is an updated version of CRC TRR190 Discussion Paper No. 224, it’s R&R at Labour Economics).

Resilient Men in Prime Working Age (Joint with Bernd Fitzenberger and Alexandra Fedorets).

The Role of STEM Occupations in the German Labor Market (Joint with Sabrina Genz and Kai Priesack).

Female Shares and Occupational Wages (Joint with Nicola Fuchs-Schündeln).