Absorption of Foreign Knowledge: The Impact of Immigrants on Firm Productivity, forthcoming in Industrial and Corporate Change. Joint with Jürgen Bitzer and Erkan Gören.  

The Export Promoting Effect of Emigration: Evidence from Denmark, Review of Development Economics 18 (2014), 693 - 708. (paper)

Does Immigrant Employment Matter for Export Sales? Evidence from Denmark, Review of World Economics 149 (2013), 369 - 394. (paper)

Does Immigration Boost Per Capita Income?, Economics Letters 107(2) (2010), 177–179. Joint with Gabriel J. Felbermayr and Davide Sala. (paper)

Work in progress

International Trade and Inventory Investment, with Horst Raff and Zhan Qu

International Tax Avoidance: Economic Consequences and Governments' Countermeasures, with Nadine Riedel and Bodo Knoll

The Impact of Home Country Conflict on Health, with Birte Larsen, Lisbeth la Cour and Nina Madsen Sjö