"No Pain, No Gain: Work Demand, Work Effort, and Worker Health ", with David Hummels and Jakob Munch (Online Appendix included). Substantially revised, relative to NBER working paper 22365 and IZA Discussion paper 10036. The Review of Economics and Statistics (2025) 107 (4): 898–913.
English Media Coverage: Washington Post, CTV (Canada), Indianapolis Public Radio.
Danish Media Coverage: Politiken, Politiken Again
“Offshoring and Labor Markets ”, with David Hummels and Jakob Munch. Journal of Economic Literature, September 2018, 56(3),981-1028.
“Product Cycles in U.S. Imports Data ”. Review of Economics and Statistics, December 2014, 96(5), 999-1004.
New Goods in U.S, Imports: HS Codes, TSUSA Codes.
“The wage and employment effects of outsourcing: evidence from Danish matched worker-firm data ”, with David Hummels, Rasmus Jorgensen and Jakob Roland Munch. American Economic Review, 104 (6), June 2014, 1597-1629.
Reprinted in "Trade and Inequality", a volume in The International Library of Critical Writings in Economics series, edited by Pinelopi K. Goldberg, Edward Elgar, 2015.
“Exporting Christianity: Governance and Doctrine in the Globalization of Protestant Denominations ”, with Gordon Hanson. Journal of International Economics 91 (2), 301-320, November 2013.
“Offshoring, Transition, and Training: Evidence from Danish Matched Worker-Firm Data ”, with David Hummels, Jakob Roland Munch and Lars Skipper. American Economic Review Papers & Proceedings, May 2012.
“Testing the Melitz Model of Trade: An Application to U.S. Motion Pictures Exports ”, with Gordon Hanson. Journal of International Economics, 83, 14-26, 2011.
“Explaining Import Quality: the Role of the Income Distribution ”, with YoChul Choi and David Hummels. Journal of International Economics, 78, 293-303. 2009.
“Factor Uses and the Pattern of Specialization ”, with Georg Schaur and Anya Savikhin. Review of International Economics, 16(2), 368-382, 2008.
“Diversification Cones, Trade Costs and Factor Market Linkages”. Journal of International Economics, Volume 71, Issue 2, April 2007, 448-466.
“New Goods and the Skill Premium”. Journal of International Economics, Volume 71, Issue 1, 8 March 2007, 133-147.
“New Goods and the Relative Demand for Skilled Labor”. Review of Economics and Statistics, May 2005, 285-298.
“The Home Market Effect and Bilateral Trade Patterns”, with Gordon Hanson. American Economic Review, September 2004, 94(4), 1108-1129.
“The Sufficiency of the ‘Lens Condition’ for Factor Price Equalization in the Case of Two Factors”. Journal of International Economics, (53)2, 2001. pp. 463-474.