Ex-post Analysis of Mobile Telecom Mergers: The Case of Austria and The Netherlands (mit L. Aguzzoni, L. Di Martile, R. Kemp und A. Schwarz), 2017, De Economist, S. 1-25
Europe – The Final Countdown: Five, four, three … no, wait! (mit T. Büttner, E. Ocello und M. Piergiovanni), 2017, Competition Law & Policy Debate, 3(4), S. 18-30
Recent Developments at DG Competition: 2016/2017 (mit D. Coublucq, C. Hariton, G. Langus und T. Valletti), 2017, Review of Industrial Organization, 51(4), S. 397-422
Recent developments in the assessment of efficiencies of EU mergers (mit G. Federico), 2016, Competition Law & Policy Debate, 2(1), S. 64-74
Do Roaming Alliances Harm Consumers?, 2015, Journal of Industrial Economics, 63(4), p. 642-672
Ex-post analysis of two mobile telecom mergers: T-Mobile/tele.ring in Austria and T-Mobile/Orange in the Netherlands (mit L. Aguzzoni, L. Di Martile, R. Kemp, A. Schwarz, R. Stil, G. Ecker), 2015, DG Comp-Bericht
Recent developments at DG Competition: 2013–2014 (mit X. Boutin, G. Koltay und M. Motta), 2014, Review of Industrial Organization, 45(4), S. 399-415
Certification and Minimum Quality Standards when some Consumers are Uninformed (mit F. Schuett), 2014, European Economic Review, 70, S. 493-511
Ideologues: Explaining Partisanship and Persistence in Politics (mit A. Kessler), 2010, CEPR Discussion Paper 7724