Working papers:

Culling the Herd? Using Mass Layoffs to Select Healthy Workers  (with D. Hummels and C. Xiang)

No Pain, No Gain: The Effects of Exports on Effort, Injury and Illness (with D. Hummels and C. Xiang), NBER Working Paper 22365.

Press coverage: Washington Post, CTV News, Politiken.

The Impact of Chinese Import Penetration on Danish Firms and Workers (with D. Ashournia and D. Nguyen), IZA Discussion Paper No. 8166.

Popular version in Danish by Kraks Fond Byforskning: Øget importkonkurrence fra lavtlønslande Hvad er effekten af kinesisk import på den danske produktion og det danske arbejdsmarked?

Press coverage: Ugebrevet A4


Selected recent publications:

Do Foreign Experts Increase the Productivity of Domestic Firms? (with N. Malchow-Møller and J. R. Skaksen), Scandinavian Journal of Economics 121, pp. 517-546, 2019.

Education Spillovers within the Workplace (with Kristian Hedeager Bentsen and Georg Schaur), Economics Letters 175, pp. 57-59, 2019. Longer IZA DP version here.

Offshoring and Labor Markets (with D. Hummels and C. Xiang), Journal of Economic Literature 56, pp. 981-1028, 2018.

The Effect of Export Promotion on Firm-Level Performance (with Georg Schaur), American Economic Journal: Economic Policy 10, pp. 357–387, 2018.

Børsen: Eksportfremme batter – især for smv’er

Taxation and the Long Run Allocation of Labor: Theory and Danish Evidence (with C. T. Kreiner and H. J. Whitta-Jacobsen), Journal of Public Economics 127, pp. 74-86, 2015.

Services Trade, Goods Trade and Productivity Growth: Evidence from a Population of Private Sector Firms (with N. Malchow-Møller and J. R. Skaksen), Review of World Economics 151, pp. 197-229, 2015.

Decomposing Firm-Level Sales Variation (with D. Nguyen), Journal of Economic Behavior and Organization, 106, pp. 317-334, 2014.

The Wage Effects of Offshoring: Evidence from Danish Matched Worker-Firm Data (with D. Hummels, R. Jørgensen and C. Xiang), American Economic Review 104, pp. 1597-1629, 2014. 

Short popular version in VoxEU: Offshoring, inequality, and the value of college degrees

Politiken Analyse: Humant: Outsourcing gør ikke alle til tabere

Magisterbladet: Outsourcing giver højere løn

Immigrant Workers and Farm Performance – Evidence from Matched Employer-Employee Data (with N. Malchow-Møller, C. A. Seidelin and J. R. Skaksen), American Journal of Agricultural Economics 95, pp. 819-841, 2013.

Education and Labor Market Policies in an Offshoring Global Economy (with D. Hummels and C. Xiang), Nordic Economic Policy Review 1/2013, pp. 75-98, 2013.

Wage Dispersion and Decentralization of Wage Bargaining (with C. M. Dahl and D. le Maire), Journal of Labor Economics 31, pp. 501-533, 2013.

Press coverage: Berlingske August 3, 2013

Do Immigrants Affect Firm-Specific Wages? (with N. Malchow-Møller and J. R. Skaksen), Scandinavian Journal of Economics 114, pp. 1267-1295, 2012.

Offshoring, Transition and Training: Evidence from Danish Matched Worker-Firm Data (with D. Hummels, L. Skipper and C. Xiang), American Economic Review Papers & Proceedings 102, pp. 424-428, 2012.

Whose Job Goes Abroad? International Outsourcing and Individual Job Separations, Scandinavian Journal of Economics 112, pp. 339-360, 2010.

Do Labour Market Institutions Matter? Micro-level Wage Effects of International Outsourcing in Three European Countries (with I. Geishecker and H. Görg), Review of World Economics 146, pp. 179-198, 2010.

Specialization, Outsourcing and Wages (with J. R. Skaksen), Review of World Economics 145, pp. 57-73, 2009.

Costs and Benefits of Danish Active Labour Market Programmes (with S. Jespersen and L. Skipper), Labour Economics 15, pp. 859-884, 2008.

Attitudes Towards Immigration. Perceived Consequences and Economic Self-interest (with N. Malchow-Møller, S. Schroll and J. R. Skaksen), Economics Letters 100, pp. 254-257, 2008.

Human Capital and Wages in Exporting Firms (with J. R. Skaksen), Journal of International Economics 75, pp. 363-372, 2008.

Home Ownership, Job Duration, and Wages (with M. Rosholm and M. Svarer), Journal of Urban Economics 63, pp. 130-145, 2008.


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