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Research

Books  

  • Industrial Organization: Markets and Strategies (with Paul Belleflamme), second edition, Cambridge University Press,  xxv + 799 pages (hardcover and paperback 2015, Greek translation 2016).
  • The Analysis of Competition Policy and Sectoral Regulation (co-edited with Yossi Spiegel), World Scientific Publisher (2014).
  • The Oxford Handbook of the Digital Economy (co-edited with Joel Waldfogel), Oxford University Press (2012).
  • Der Ausbau neuer Netze in der Telekommunikation - institutionelle, ökonomische und juristische Betrachtungen (with Roman Inderst, Jürgen Kühling and Karl-Heinz Neumann), Nomos Verlag, 326 pages (2012).
  • Industrial Organization: Markets and Strategies (with Paul Belleflamme), Cambridge University Press,  xxi + 702 pages (hardcover and paperback 2010, South Asian edition 2011).
  • Industrial Organization and the Digital Economy (co-edited with Gerhard Illing), MIT Press (2006).
  • Regulation and Entry into Telecommunications Markets (with Paul de Bijl), Cambridge University Press, xiv + 272 pages (hardcover 2002, 2nd printing 2003, 3rd printing 2004, electronic book 2004, Chinese translation 2006, paperback 2008). 

 

 

Journal Articles    

  • “De-targeting: Advertising an Assortment of Products to Loss-Averse Consumers” (with Heiko Karle), European Economic Review 95, 103-124 (2017).
  • “Experimentation in Two-Sided Markets” (with Sven Rady and Piers Trepper), Journal of the European Economic Association 15, 128-172 (2017).
  • “Kollaboratives Wirtschaften oder Turbokapitalismus? Zur Ökonomie der Sharing-Economy” (with Ulrich Schwalbe), Perspektiven der Wirtschaftspolitik 17, 232-252 (2016).
  • “Information Disclosure and Consumer Awareness” (with Sanxi Li and Xiaojian Zhao), Journal of Economic Behavior and Organization 108, 209-230 (2016).
  • “Net Neutrality: A Fast Lane to Understanding the Trade-offs” (with Shane Greenstein and Tommaso Valletti), Journal of Economic Perspectives 30, 127-149 (2016).
  • “Net Neutrality and Inflation of Traffic” (with Florian Schuett), International Journal of Industrial Organization 46, 16-62 (2016).
  • “Reassessing Competition Concerns in Electronic Communications Markets” (with Tommaso Valletti), Telecommunications Policy 39, 896-912 (2015).
  • “The Economics of Crowdfunding Platforms” (with Paul Belleflamme and Nessrine Omrani), Information Economics and Policy 33, 11-28 (2015).
  • “Firm Reputation and Incentives to "Milk" Pending Patents” (with Johannes Koenen), International Journal of Industrial Organization 43, 18-29 (2015).
  • “Loss Aversion and Consumption Choice: Theory and Experimental Evidence” (with Heiko Karle and Georg Kirchsteiger), American Economic Journal: Microeconomics 7, 101-120 (2015).
  • “Indirect Taxation in Vertical Oligopoly” (with Markus Reisinger), Journal of Industrial Economics 62, 709-755 (2014).
  • “Vertically Differentiated Duopoly with Unaware Consumers” (with Sanxi Li and Xiaojian Zhao), Mathematical Social Sciences 70, 59-67 (2014).
  • “Competition under Consumer Loss Aversion” (with Heiko Karle), Rand Journal of Economics 45, 1-31 (2014).
  • “Investment under Uncertainty and Regulation of New Access Networks” (with Roman Inderst), Information Economics and Policy 26, 28-41 (2014). 
  • “Asymmetric Information and Overinvestment in Quality” (with Paul Belleflamme), European Economic Review 66, 127-143 (2014).
  • “Innovation and Waste in Supply Chain Management” (with Dongsoo Shin), Journal of Economic Behavior and Organization 86, 191-199 (2013).
  • “Upstream Market Power and Wasteful Retailers” (with Dongsoo Shin), Scandinavian Journal of Economics 115, 234-253 (2013).
  • “Informing Consumers about their own Preferences” (with Roman Inderst), International Journal of Industrial Organization 30, 417-428 (2012).
  • “Media Market Concentration, Advertising Levels, and Ad Prices” (with Simon Anderson, Oystein Foros and Hans Jarle Kind), International Journal of Industrial Organization 30(conference volume), 321-325 (2012).
  • “Network Investment, Access and Competition” (with Roman Inderst), Telecommunications Policy 36, 407-418 (2012).
  • “Market Asymmetries and Investments in Next Generation Access Networks” (with Roman Inderst), Review of Network Economics 11(1), 1-25 (2012).
  • “The Impact of Different Fibre Access Network Techonologies on Cost, Competition and Welfare” (with Steffen Hoernig, Stephan Jay, Karl-Heinz Neumann, Thomas Plückebaum, and Ingo Vogelsang), Telecommunications Policy 36, 96-112 (2012).
  • “Advance-Purchase Discounts as a Price Discrimination Device” (with Volker Nocke and Frank Rosar), Journal of Economic Theory 146, 141-162 (2011).
  • “Regulatory Legacy, VoIP Adoption and Investment Incentives” (with Paul de Bijl), Telecommunications Policy 34, 596-605 (2010).
  • “Platform Competition and Seller Investment Incentives” (with Paul Belleflamme), European Economic Review 54, 1059-1076 (2010).
  • “With a Little Help from my Enemy: Comparative Advertising as a Signal of Quality” (with Francesca Barigozzi and Paolo Garella), Journal of Economics and Management Strategy 18, 1071-1094 (2009).
  • “Access Regulation and the Adoption of VoIP” (with Paul de Bijl), Journal of Regulatory Economics 35, 111-134 (2009).
  • “Umbrella Branding and External Certification” (with Hendrik Hakenes), European Economic Review 53, 186-196 (2009).
  • “Innovation, Convergence and the Role of Regulation in the Netherlands and Beyond” (with Paul de Bijl), Telecommunications Policy 32, 744-754 (2008).
  • “Advertising and Content in Media: Pay-TV versus Free-to-Air” (with Tommaso Valletti), International Journal of Industrial Organization 26, 949-965 (2008).
  • “Umbrella Branding and the Provision of Quality” (with Hendrik Hakenes), International Journal of Industrial Organization 26, 546-556 (2008).
  • “Bundling May Blockade Entry”, International Journal of Industrial Organization 26, 41-58 (2008).
  • “Platform Ownership” (with Volker Nocke and Konrad Stahl), Journal of the European Economic Association 5, 1130-1160 (2007).
  • “A Theory of Clearance Sales” (with Volker Nocke), Economic Journal 117, 964-990 (2007).
  • “Alliances between Competitors and Consumer Information” (with Paolo Garella), Journal of the European Economic Association 5, 823-845 (2007).
  • “Observable Reputation Trading” (with Hendrik Hakenes), International Economic Review 48, 693-730 (2007).
  • “Piracy of Digital Products: A Critical Review of the Theoretical Literature” (with Patrick Waelbroeck), Information Economics and Policy 18, 449-476 (2006).
  • “Why the Music Industry May Gain from Free Downloading - the Role of Sampling” (with Patrick Waelbroeck), International Journal of Industrial Organization 24, 907-913 (2006).
  • “Can DRM Create New Markets?” (with Anne Duchene and Patrick Waelbroeck), Communications and Strategies 62, 197-207 (2006).
  • “Marktplätze und indirekte Netzwerkeffekte”, Perspektiven der Wirtschaftspolitik 7, 317-333 (2006).
  • “Asymmetric Regulation of Access and Price Discrimination in Telecommunications”, Journal of Regulatory Economics 28, 327-343 (2005).
  • “Local Loop Unbundling in Europe: Experience, Prospects and Policy Challenges” (with Paul de Bijl), Communications and Strategies 57, 33-57 (2005).
  • “An Economist’s Guide to Digital Music” (with Patrick Waelbroeck), CESifo Economic Studies 51, 359-428 (2005).
  • “Asymmetric Access Price Regulation in Telecommunications Markets”, European Economic Review 49, 341-358 (2005).
  • “The Effect of Internet Piracy on CD Sales – Cross Section Evidence” (with Patrick Waelbroeck), Review of Economic Research on Copyright Issues 1, 71-79 (2004).
  • “Dynamic Regulation and Competition in Telecommunications Markets: A Policy Framework” (with Paul de Bijl), Information Economics and Policy 16, 411-437 (2004).
  • “A Strategic Approach to Software Protection: Comment”, Journal of Economics and Management Strategy 13, 371-374 (2004).
  •  “On Access Pricing in Telecoms: Theory and European Practice”, Telecommunications Policy 27, 729-740 (2003).
  • “Hyperbolic Discounting and Secondary Markets” (with Volker Nocke), Games and Economic Behavior 44, 77-97 (2003).
  • “Price Competition in Address Models of Product Differentiation: Unit-Elastic Demand”, Economic Theory 20, 849-860 (2002).
  • “New Competition in Telecommunications Markets: Regulatory Pricing Principles” (with Paul de Bijl), Ifo Studien (now CESifo Economic Studies) 48, 27-52 (2002).
  • “Competing Head-to-Head or Selling to a Fringe”, Manchester School 70 (Special Issue on Industrial Organization), 134-149 (2002).
  • “The Pro-Competitive Effect of Higher Entry Costs”, International Journal of Industrial Organization 20, 353-364 (2002).
  • “Intermediation Can Replace Certification” (with Paolo Garella), Journal of Economics and Management Strategy 9, 1-24 (2000).
  • “Aggregation in a Model of Price Competition”, Journal of Economic Theory 90, 1-38 (2000).
  • “Equilibrium Uniqueness in Oligopoly Games with Strategic Complements”, Economics Letters 65, 347-351 (1999).
  • “The Circular Road Revisited: Uniqueness and Supermodularity”, Research in Economics/Ricerche Economiche 53, 405-420 (1999).
  • “A Difficulty with the Address Models of Product Differentiation”, Economic Theory 14, 717-727 (1999).
  • “The Differentiation Triangle” (with Marcel Canoy), Journal of Industrial Economics 45, 305-328 (1997).
  • “Models à la Lancaster and à la Hotelling: When They Are the Same”, Economics Letters 54, 147-154 (1997).
  • “Differentiated Bertrand Duopoly with Variable Demand”, Research in Economics/Ricerche Economiche 51, 85-100 (1997).
  • “Utility Maximization in Models of Discrete Choice”, Economics Letters 49, 91-94 (1995).

 

Articles in Books

  • “Media Economics of the Internet” (with Markus Reisinger), in: S. Anderson, D. Stromberg and J. Waldfogel (eds.), Handbook of Media Economics, vol. 1A, North Holland (2016), pages 445-530.
  • “Digital Piracy” (with Paul Belleflamme), in: J.G. Backhaus (ed.) Encyclopedia of Law and Economics, Springer Science+Business Media (2014).
  • “The Economics of Pending Patents” (with Johannes Koenen), in: J. Harrington and Y. Katsoulacos (eds.), Recent Advances in the Analysis of Competition and Regulation, Edward Elgar (2012), pages 49-73.
  • “Digital Piracy: Theory” (with Paul Belleflamme), in: M. Peitz and J. Waldfogel (eds.), The Oxford Handbook of the Digial Economy, Oxford University Press (2012), pages 489-530. 
  • “Comparative Advertising and Competition Policy” (with Francesca Barigozzi), in: J. P. Choi (ed.), Recent Trends in Antitrust: Theory and Evidence, MIT Press (2006), pages 215-263.
  • “Local Loop Unbundling: One-Way Access and Imperfect Competition” (with Paul de Bijl), in: R. Dewenter and J. Haucap (eds.), Access Pricing: Theory and Practice, Elsevier Science (2006), pages 91-117.
  • “Digital Music” (with Patrick Waelbroeck), in: Illing, G. and M. Peitz (eds.), Industrial Organization and the Digital Economy, MIT Press (2006), pages 71-144. [revised version of “An Economist‘s Guide to Digital Music” (with Patrick Waelbroeck), published in CESifo Economic Studies].
  • “New Competition in Telecommunications Markets: Regulatory Pricing Principles” (with Paul de Bijl), in: Illing, G. and U. Klüh (eds.) Spectrum Auctions and Competition in Telecommunications, MIT Press (2004), pages 45-72. [minor revision of article in Ifo Studien 48, 27-52 (2002)].
  • “On Price Competition with Heterogeneous Consumers”, in: Debreu, G., Neuefeind, W. and W. Trockel (eds.), Economics Essays – A Festschrift in Honor of Werner Hildenbrand, Springer (2001), pages 295-314.
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Book Reviews

 

  • “Against Intellectual Monopoly by Michele Boldrin and David Levine”, Journal of Economics 101, 97-98 (2010).
  • “Oligopoly Pricing: Old Ideas and New Tools by Xavier Vives”, Journal of Economics 73, 209-212 (2001).
  • “Supermodularity and Complementarity by Donald Topkis”, Economic Journal 109, 850-852 (1999).
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Miscellanea

  • "Suchmaschinen unter der Lupe: Informationsherrschaft und ihre Schranken" (in German, with Heike Schweitzer), Wirtschaftsdienst - Zeitschrift für Wirtschaftspolitik 96, 825-829 (2016).
  • "Understanding the Strategies of Crowdfunding Platforms" (with Paul Belleflamme and Nessrine Omrani), CESifo DICE Report 14 (2), 6-10 (2016).
  • “Net Neutrality Rules Will Make Winners and Losers Out of Businesses” (with Shane Greenstein and Tommaso Valletti), Harvard Business Review online June 27 (2016).
  • “Die Entzauberung von Airbnb und Uber” (in German), ifo Schnelldienst 21/2014, 6-8 (2014).
  • “Digital Piracy” (with Paul Belleflamme), in: J.G. Backhaus (ed.) Encyclopedia of Law and Economics, Springer Science+Business Media (2014).
  • “Flexible Geschäftsmodelle in der Telekommunikation und die Netzneutralitätsdebatte” (in German, with Thomas Fetzer and Heike Schweitzer), Wirtschaftsdienst - Zeitschrift für Wirtschaftspolitik 93, 695-701 (2013).
  • “Die Netzneutralitätsdebatte aus ökonomischer Sicht” (in German, with Thomas Fetzer and Heike Schweitzer), Wirtschaftsdienst - Zeitschrift für Wirtschaftspolitik 92, 777-783 (2012).
  • “Investitionen in Next-Generation-Access-Netze: Zugangsverträge und Investitionen” (in German, with Roman Inderst, Jürgen Kühling, and Karl-Heinz Neumann), Wirtschaftsdienst - Zeitschrift für Wirtschaftspolitik 91, 406-413 (2011).
  • “Introduction to Special Issue on Digital Piracy” (with Joel Waldfogel), Information Economics and Policy 22, 287-288 (2010).
  • “Broadband Access in Europe: Challenges for Policy and Regulation” (with Paul de Bijl), CESifo DICE Report – Journal of Institutional Comparisons 4(3), 10-15 (2006).
  • “A Road Map to ‘Industrial Organization and the Digital Economy’ ” (with Gerhard Illing), in: Illing, G. and M. Peitz (eds.), Industrial Organization and the Digital Economy, MIT Press (2006), pages 1-10.
  • “VOIP Challenges Regulation in Europe” (with Paul de Bijl), Telecommunications Online, Americas Issue, Mid September 2005.
  • “Understanding the Digital Economy: Facts and Theory – Introduction” (with Gerhard Illing), CESifo Economic Studies 51, 187-188 (2005).
  • “Introduction: Special Issue on Competition in Telecommunications” (with Tommaso Valletti and Julian Wright), Information Economics and Policy 16, 315-321 (2004).
  • “Competencia y Regulación de la Interconexión en Mercados de Telecomunicación”, Economía Industrial 339, 95-103 (2001).