Publications
Publications in refereed Journals
Airbnb and Rental Markets: Evidence from Berlin (with Claus Michelsen, Maximilian Schaefer, Kevin Ducbao Tran)
Regional Science and Urban Economics, 2024, 1004007
[Download]
Revisiting the relatedness hypothesis: The impact of merger relatedness on acquiring and rival firm value (with Joe Clougherty)
Long Range Planning, 2023, 102325.
[Download]
R&D Spillovers through RJV Cooperation (with Albert Banal-Estañol, Jo Seldeslachts, and Florian Szücs)
Research Policy, 2022, 51, 4, 104465
[Download]
The assessment of substitution through event studies – an application to supply-side substitution in Berlin’s rental market (with Claus Michelsen, Maximilian Schaefer, Kevin Ducbao Tran)
Journal of European Competition Law and Practice, 2022, 13, 7, 509–515
[Download]
The Effect of Mergers on Variety in Grocery Retailing (with Elena Argentesi, Paolo Buccirossi, Roberto Cervone, and Alessia Marrazzo),
International Journal of Industrial Organization, 2021, 79, 102789
[Download]
Twenty-five Years European Merger Control: The Determinants of the Commission's Decisions, (with Pauline Affeldt and Florian Szücs)
International Journal of Industrial Organization, 2021, 76, 102720
[Download] [Download the data]
Merger Policy in Digital Markets: An Ex-Post Assessment (with Elena Argentesi, Paolo Buccirossi, Emilio Calvano, Alessia Marrazzo, Salvatore Nava)
Journal of Competition Law and Economics, 2021, 17, 1, 95-140
[Download] [Voxeu Column] [VoxeuTalk]
Transformational Strategies and Productivity Growth: A Transformational-Activities Perspective on Stagnation in the New-Normal Business Landscape (with Lorenzo Ciari, Joseph Clougherty, and Jo Seldeslachts)
Journal of Management Studies, 2020, 57, 3, 537-568
[Download]
Abuse of Dominance and Antitrust Enforcement in the German Electricity Market (with Veit Böckers and Florian Szücs)
Energy Economics, 2020, 92, 104936
[Download]
The Impact of Competition Policy Enforcement on the Functioning of EU Energy Markets, (with Jo Seldeslachts and Florian Szücs)
The Energy Journal, 2019, 40, 5, 97-120.
[Download]
Market Power and Heterogenous Pass-through in the German Retail Electricity Market (with Florian Szücs)
European Economic Review, 2017, 98, 354-372
[Download]
Ex-post Merger Evaluation in the UK Retail Market for Books (with Luca Aguzzoni, Elena Argentesi, Lorenzo Ciari, and Massimo Tognoni)
Journal of Industrial Economics, 2016, 64, 1, 170-200
[Download]
Effective European Antitrust: Does EC Merger Policy Involve Deterrence? (with Joseph Clougherty, Miyu Lee, and Jo Seldeslachts)
Economic Inquiry, 2016, 54, 4, 1884–1903
[Download]
Why are Chinese MNEs not Financially Competitive in Cross-border Acquisitions? The Role of State-ownership, (with Joseph Clougherty and Wenxin Guo)
Long Range Planning, 2016, 9, 614-631
[Download]
Correcting for Self-Selection Based Endogeneity in Management Research: Review, Recommendations and Simulations, (with Joseph Clougherty and Johannes Muck)
Organizational Research Methods, 2016, 19, 2, 286-347
[Download]
Collusion through Joint R&D: An Empirical Assessment (with Lars-Hendrik Röller and Jo Seldeslachts)
The Review of Economics and Statistics, 2014, 96, 2, 349-370
The Welfare Impact of Parallel Imports: A Structural Approach Applied to the German Market for Oral Antidiabetics (with Annika Herr and Moritz Suppliet)
Health Economics, 2014, 23, 1036-1057
Awarded the 2015 Research Award from the German Association for Health Economics
[Download]
A Retrospective Merger Analysis in the UK Videogames Market (with Luca Aguzzoni, Elena Argentesi, Paolo Buccirossi, Lorenzo Ciari, Massimo Tognoni, and Cristiana Vitale)
Journal of Competition Law and Economics, 2014, 10, 4, 933-958
[Download]
An Empirical Assessment of the 2004 EU Merger Policy Reform (with Klaus Gugler and Florian Szücs)
Economic Journal, 2013, 123, 572, F596-F619
[Download] [Voxeu Column]
Competition Policy and Productivity Growth: An Empirical Assessment, (with Paolo Buccirossi, Lorenzo Ciari, Giancarlo Spagnolo, and Cristiana Vitale),
The Review of Economics and Statistics, 2013, 95, 4, 1324-1336
[Download] [Replication Data] [Press coverage: NZZ, FAZ]
Product Market Competition and Lobbying Coordination in the U.S. Mobile Telecommunications Industry, (with Astrid Jung)
Journal of Industry, Competition, and Trade, 2012, 12, 2, 177-201
Awarded the Young Economist Award, European Economic Association
[Download]
On the Stability of Research Joint Ventures: Implications for Collusion (with Enrico Pennings and Jo Seldeslachts)
Review of Business and Economic Literature, 2012, 57, 1, 98-108
Using Rival Effects to Identify Synergies and Improve Merger Typologies, (with Joseph Clougherty)
Strategic Organization, 2011, 9, 310-355
[Download]
How Effective is European Merger Control? (with Klaus Gugler and Burcin Yurtoglu)
European Economic Review, 2011, 55, 7, 980-1006
[Download]
Measuring the Deterrence Effect of Competition Policy: The Competition Policy Indexes, (with Paolo Buccirossi, Lorenzo Ciari, Giancarlo Spagnolo, and Cristiana Vitale)
Journal of Competition Law and Economics, 2011, 7, 165-204
[Download]
Learning Dynamics in Research Alliances: A Panel Data Analysis, (with Enrico Pennings and Jo Seldeslachts)
Research Policy, 2010, 39, 6, 776-789
The Political Economy of Mobile Telecommunications Liberalization: Evidence from the OECD Countries, (with Jo Seldeslachts)
Journal of Comparative Economics, 2010, 38, 2, 199-216
[Download]
Is the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data, (with Klaus Gugler and Burcin Yurtoglu)
International Review of Law and Economics, 2010, 30, 186-192
The Impact of Horizontal Mergers on Rivals: Gains to Being Left Outside a Merger (with Joseph Clougherty)
Journal of Management Studies, 2009, 46, 8, 1365-1395
SAP Best Strategy Paper Award, Annual Conference on Corporate Strategy
[Download] [Press coverage: Handelsblatt, Financial Time Deutschland]
A Short Overview of a Methodology for the Ex-Post Review of Merger Control Decision (with Paolo Buccirossi, Lorenzo Ciari, Sven-Olof Fridolfsson, Giancarlo Spagnolo, and Cristiana Vitale)
De Economist, 2008, 156, 4, 453-47
The Political Economy of European Merger Control: Evidence Using Stock Market Data, (with Damien Neven and Lars-Hendrik Röller)
The Journal of Law and Economics, 2007, 50, 3, 455-489
[Download]
Market Conduct and Endogenous Lobbying: Evidence from the U.S. Mobile Telecommunications Industry, (with Astrid Jung)
Journal of Industry, Competition, and Trade, 2007, 7, 9-29
[Download]
Lobbying and Regulation in a Political Economy: Evidence from the U.S. Cellular Industry,
Public Choice, 2005, 122, 3-4, 251-276
[Download] Awarded the Young Economists’ Essay Award, EARIE
Endogenous Deregulation: Evidence from OECD Countries (with Lars-Hendrik Röller)
Economics Letters, 2003, 81,1, 67-71
[Download]
Complete Markets in Italy: An Analysis on Micro Data
Giornale degli Economisti ed Annali di Economia, 1999, 58, 1, 1-25
[Download]
Chapters in refereed Books
Deterrence in Competition Law, (with Paolo Buccirossi, Lorenzo Ciari, Giancarlo Spagnolo, and Cristiana Vitale)
in Martin Peitz and Yossi Spiegel Eds. Analysis of Competition Policy and Sectoral Regulation, Boston -- Delft: Now Publishers Inc, 2014, 423-454
A Decade of Ex-post Merger Policy Evaluations: A Progress Report,
in Dan Sjöblom Ed., The Pros and Cons of Merger Control, Stockholm: Swedish Competition Authority, 2012, 125-188
Merger Policy Evaluation: Where Do We Stand?, (with Klaus Gugler and Florian Szücs)
in Mel Marquis and Philip Low Eds., European Competition Law Annual 2010: Merger Control in European and Global Perspective, Wildy and Son, London, 2010, forthcoming
Merger Remedies, (with Klaus Gugler and Burcin Yurtoglu)
in: S. Vogt, M. Albert, and D. Schmidtchen Eds., The More Economic Approach to European Competition Law, Conferences on the New Political Economy 24, Mohr Siebeck Verlag: Tübingen, 2007, 255-266
EU Merger Remedies: An Empirical Assessment, (with Klaus Gugler and Burcin Yurtoglu)
in J. Stennek and V. Ghosal Eds., The Political Economy of Antitrust, Contributions to Economic Analysis, North-Holland, 2007, 302-348.
Working paper version: [Download]
Analyse von Abhilfemaßnahmen im EU-Fusionsverfahren,
in J. Schwarze Herausgeber, Recht und Ökonomie im Europäischen Wettbewerbsrecht, Nomos Verlag, 2006, s. 71-83
Books
The Political Economy of the Regulatory Process: An Empirical Approach, Humboldt-University Dissertation, 2002, Berlin
Other non-refereed publications
Wohnkosten, Lebenszufriedenheit, Sicherheitsempfinden und Narrative: eine Betrachtung der langfristigen Verteilunswirkung von Wohnungsmarktzyklen (WSLN); Abschlussbericht, (with Felix Aubele, Pio Baake, Konstantin A. Kholodilin, Linus Pfeifer, Caroline Stiel)
Politikberatung kompakt 199, VI, 147 S., 2023.
Breiter Industriestrompreis ist kein geeignetes Entlastungsinstrument (with Lea Bernhardt, Robin Sogalla, and Alexander Schiersch)
DIW Wochenbericht 38/2023, 513-521.
Daten als Wettbewerbsvorteil: Regulierer und Wettbewerbsbehörden sollten aufmerksam bleiben (with Hannes Ullrich, Jonas Hannane, Christian Peukert, and Luis Aguiar)
DIW Wochenbericht 27/2023, 366-373.
Der Mythos von der Gierflation (with Lea Bernhardt)
Frankfurter Allgemeine Zeitung, June 18, 2023
Cloud-Lösungen können Produktivität steigern (with Alexander Schiersch)
DIW Wochenbericht 20/2023, 233-240
Das Ende des digitalen wilden Westens
Frankfurter Rundschau & DIW Wochenbericht 15/16 / 2022, 240
Concentration in the EU: Where It is Increasing and Why (with Pauline Affeldt, Klaus Gugler, and Joanna Piechucka)
Promarket, May 19 2021
Marktkonzentrationstrend steigt in Dienstleistungsmärkten deutlich (with Pauline Affeldt, Klaus Gugler, and Joanna Piechucka)
DIW Wochenbericht 20/2021, 339-347
Facebook Break-up Can Be Feasible, Efficient, and Ultimately Beneficial to Consumers (with Paolo Buccirossi and Emilio Calvano)
Promarket, April 7 2021
Durch Airbnb-Vermietungen steigen in Berlin die Mieten (with Claus Michelsen, Maximilian Schaefer, Kevin Ducbao Tran)
DIW Wochenbericht 7/2021, 95-102
EU-Regionalbeihilfen haben positiven Einfluss auf Investitionen, (with Joanna Piechucka and Jo Seldeslachts)
DIW Wochenbericht 42/2020, 801-808
Google/Fitbit will monetise health data and harm consumers , with (Marc Bourreau, Cristina Caffarra, Zhijun Chen, Chongwoo Choe, Gregory S. Crawford, Christos Genakos, Paul Heidhues, Martin Peitz, Thomas Rønde, Monika Schnitzer, Nicolas Schutz, Michelle Sovinsky, Giancarlo Spagnolo, Otto Toivanen, Tommaso Valletti and Thibaud Vergé )
CEPR Policy Insight No. 107, September 2020. See also as voxeu.org column.
Wenn Google einkauft, (with Hannes Ullrich)
Frankfurter Rundschau, August 31, 2020
Fusion von Google und Fitbit: Wettbewerbsbehörden können jetzt ein Zeichen setzen: Kommentar, (with Hannes Ullrich)
DIW Wochenbericht 35/2020, 616
Europe must not rush Google-Fitbit deal (with Francesca Bria, Cristina Caffarra, Gregory Crawford, Wolfie Christl, Johnny Ryan, and Tommaso Valletti)
Politico Europe, July 22 2020
Der Staat darf den Wettbewerb am Himmel nicht verzerren.
Der Tagespiegel, May 5, 2020
Tech-over: Mergers and merger policy in digital markets, (with Elena Argentesi, Paolo Buccirossi, Emilio Calvano, Alessia Marrazzo, Salvatore Nava)
VoxEU, March 2020
VoxTalk with Tim Phillips: Digital market merger policy
Digitalisierung für das Gemeinwohl: neue Werkzeuge für eine bessere Politik: Kommentar, (with Hannes Ullrich)
DIW Weekly Report 3/2020, 32
Der Markt allein ist nicht immer in der Lage, Innovationen hervorzubringen , (with Heike Belitz and Alexander Schiersch)
Der Tagesspiegel, January 3, 2020
European merger control: more is better
DIW Weekly Report 16+17+18/2019, 142-143
Europäische Fusionskontrolle: Lieber mehr als weniger
DIW Wochenbericht 16+17+18/2019, 304-305
Industriepolitik der Bundesregierung gefährdet deutsche Exportunternehmen, (with Marcel Fratzscher)
Der Tagesspiegel, March 6, 2019
Wenn man Recht hat und dazu noch für Europa alles richtig macht: Kommentar
DIW Wochenbericht 7/8/2019, 108
Neuer 5G-Standard: Gigabit-Netze für alle viele
Spiegel Online, October 3, 2018
Ausbau der deutschen Grundbreitbandversorgung: Lehren aus der Vergangenheit mahnen zur Besonnenheit (with Mattia Nardotto and Jo Seldeslachts)
DIW Wochenbericht 25/2018, 544-551
Haushaltsstrompreise: Tarifwechsel ermöglichen große Einsparungen, (with Florian Szücs)
DIW Wochenbericht 6/2018, 89-99
Insolvenz von Air Berlin -- die letzte Hoffnung liegt bei den Wettbewerbsbehörden
DIW Wochenbericht 40/2017, 887
EU-Kartellstrafe: Was bedeutet der Fall Google? (with Hannes Ullrich)
DIW Wochenbericht 29/2017, 608
EU-Roaminggebühren werden abgeschafft: Gute Nachricht! Aber legen wir uns damit auf ein Wasserbett?
DIW Wochenbericht 24/2017, 500
Auto-Fusion Opel und PSA: Mehr Chancen als Risiken, (with Martin Gornig)
Der Tagesspiegel, March 7, 2017
Jetzt die Versandapotheken verbieten? Bitte nicht!
DIW Wochenbericht 45 / 2016, 1081
Ein Plädoyer für einen gelassenen Umgang mit Unternehmensdaten für statistische Zwecke, (with Hannes Ullrich)
DIW Wochenbericht 18/2016, 416
EU Competition Policy Enforcement Supports Investment in the Energy Sectors, (with Jo Seldeslachts and Florian Szücs)
DIW Economic Bulletin 15 / 2016, 173-181
EU-Wettbewerbspolitik fördert Investitionen in den Energiesektoren, (with Jo Seldeslachts and Florian Szücs)
DIW Wochenbericht 15 / 2016, 282-290
Deterrence in EU merger policy, (with Joseph A. Clougherty and Jo Seldeslachts)
VoxEU, April 2016
Unternehmenszusammenschlüsse im Lebensmitteleinzelhandel verringern die Produktvielfalt (with Elena Argentesi, Paolo Buccirossi, Roberto Cervone, and Alessia Marrazzo)
DIW Wochenbericht 1 / 2016, 11-22
Warum der Wirtschaftsminister die Übernahme von Kaiser's durch Edeka nicht genehmigen sollte
Pirmasenser Zeitung (with Vanessa von Schlippenbach), July 15, 2015
Warum Bundeswirtschaftsminister Gabriel der Übernahme von Kaiser’s Tengelmann durch EDEKA keine Ausnahmegenehmigung erteilen sollte (with Vanessa von Schlippenbach)
DIW Wochenbericht 28 / 2015, 664
Lebensmitteleinzelhandel: Nachfragemacht der Supermärkte (with Vanessa von Schlippenbach)
Wirtschaftsdienst, 94, 2014, 10, 688-689
Bundeskartellamt untersucht Lebensmitteleinzelhandel: Ein wichtiger Schritt in die richtige Richtung: Kommentar (with Vanessa von Schlippenbach)
DIW Wochenbericht 43 / 2014, 1160
Fusion auf dem Mobilfunkmarkt: Keine leichte Entscheidung für die EU-Kommission: Kommentar (with Pio Baake)
DIW Wochenbericht 29 / 2014, 708
Die Ökonomisierung der Europäischen Fusionskontrolle: eine Evaluierung (with Florian Szücs)
DIW Wochenbericht 29 / 2014, 699-704
Eine bessere Wettbewerbspolitik steigert das Produktivitätswachstum merklich
DIW Wochenbericht 29 / 2014, 687-697
Gesundheitsforschung am DIW Berlin (with Peter Haan and Gert G. Wagner)
DIW Wochenbericht 14 / 2014, 291-293
European Merger Policy Reform, (with Klaus Gugler and Florian Szücs)
VoxEU, January 2014
Die 2004 Reform der Europäischen Fusionskontrolle, (with Klaus Gugler and Florian Szücs),
Oekonomenstimme, April 2011
Die Konkurrenz Freut Sich
WZB Mitteilungen 125, September 2009, 30-32
Reviving the economy. Robert Solow on the need of a coordinated fiscal policy
WZB Mitteilungen 124, Juni 2009, 52-34
Assessing Merger Control Decisions: The role of Competitors,
VoxEU, July 2008
Economic Patriotism and National Champions in the EU,
Humboldt Institution on Transatlantic Issues Policy Paper, February 2007
Noch nicht Optimal: Die Wirkung von Auflagen in EU-Fusionskontollverfahren
WZB Mittelungen, 110, December 2005, 28-31
Regulierung des US-Mobilfunkmarkt
WZB Mitteilungen 89, September 2000, 14-16
![](https://www.google.com/images/icons/product/drive-32.png)
![](https://www.google.com/images/icons/product/drive-32.png)