KU Leuven Faculty of Law Data as Essential Facility Competition and Innovation on Online Platforms Inge Graef Supervisor: Prof. Dr. Peggy Valcke Co-supervisor: Prof. Dr. Wouter Devroe Thesis submitted with a view to obtaining the degree of Doctor of Laws Academic year 2015-2016 2 KU Leuven Faculty of Law Data as Essential Facility Competition and Innovation on Online Platforms Inge Graef Thesis submitted with a view to obtaining the degree of Doctor of Laws of KU Leuven Examination committee: Prof. Dr. Peggy Valcke (Supervisor), KU Leuven Prof. Dr. Wouter Devroe (Co-supervisor), KU Leuven Prof. Dr. Pierre Larouche, Tilburg University Prof. Dr. Alexandre de Streel, Université de Namur Em. Prof. Dr. Jules Stuyck, KU Leuven Em. Prof. Dr. Frank Hutsebaut (Chairman), KU Leuven The text is updated until 30 May 2016 3 4 Acknowledgements This thesis marks the end of a doctoral project initiated in October 2012 at the predecessor of the current Centre for IT & IP Law (CiTiP), the Interdisciplinary Centre for Law & ICT (ICRI), of the Faculty of Law of KU Leuven. At ICRI and its successor CiTiP, I found a very stimulating working environment made up of a dynamic bunch of researchers with different backgrounds and interests. I feel privileged to be a part of such a vibrant research group. Over the years, I have benefited from invaluable discussions with colleagues who have widened my horizon to ‘exotic’ topics that I was not yet familiar with such as data protection, e-health and cyber security. I am grateful to all my colleagues who make CiTiP such an enjoyable place to work. Notably, I would like to mention my past and current roommates, Björn, Ellen, Valerie and Stephanie in particular, who brightened up my day on many occasions by providing welcome distractions from the PhD writing. In addition, I would like to say a word of thanks to the ‘admin team’, Shuki, Carmen and Edith, for the excellent administrative support. From October 2013 onwards, I have benefited from a PhD scholarship from the Research Foundation Flanders (FWO) which gave me even more freedom and opportunities to participate in conferences and workshops in Belgium and abroad. At these occasions, I have met many fellow researchers who have often provided renewed inspiration and motivation for the thesis. Special thanks go out to Dr. Yuli Wahyuningtyas with whom I had the pleasure to work on a number of papers and who joined me in attending many events, or ‘competition law picnics’ as we used to call them. I would also like to thank FWO for funding my research stay at the Max Planck Institute for Innovation and Competition in Munich in Fall 2014 where I benefited from useful exchanges with Dr. Beatriz Conde Gallego and Dr. Gintarė Surblytė. The members of my PhD examination committee deserve particular mention here. Before all others, I am grateful to Prof. Dr. Peggy Valcke for being a most inspiring supervisor and for being there whenever I needed advice or guidance. For the encouragement she offered and for the opportunities she created for me over the years, I will always be thankful. I am also much indebted to my co-supervisor Prof. Dr. Wouter Devroe for introducing me to the exciting field of competition law when I was a master student in Maastricht in 2009, for supporting me and following my work ever since, and for stimulating me to form my own opinion on the PhD topic. I would also like to thank Prof. Dr. Pierre Larouche and Prof. Dr. Alexandre de Streel for their commitment to the PhD project as members of my supervisory committee and for providing detailed comments and suggestions on draft chapters along the way. In addition, I wish to express my gratitude to Em. Prof. Dr. Jules Stuyck for kindly accepting to read the manuscript and to act as a member of the examination committee at the end of the project, and to Em. Prof. Dr. Frank Hutsebaut for taking up the role of chairman at the predefence and the public defence. Finally, a very special thanks goes to my parents and sister for their continued support and encouragement without which I would not have reached this far. 5 6 Abstract The competitive strength of online businesses is increasingly being determined by the amount, variety and quality of the data they hold. Providers of online platforms such as search engines, social networks and e-commerce platforms employ business models that are dependent on the acquisition and monetisation of personal data of users. Many internet companies can be seen as so-called ‘multi-sided’ platforms that bring users and advertisers together. By accumulating and analysing information about the behaviour and interests of users, providers of these platforms are able to improve their services to users in the form of more relevant search results, social interactions and purchase recommendations as well as to advertisers in the form of better targeted advertising. Datasets built on the basis of the information that individuals disclose when using online services have become an economic asset in the digital economy. Against this background, the thesis explores how existing competition concepts can be applied to data-related competition concerns in digital markets. The main focus is on potential refusals of dominant providers of online platforms to give access to their data. In line with its significance in the digital economy, data is becoming a necessary input of production for a variety of services competing with or complementary to the services offered by incumbent providers. By refusing to share information with potential competitors or new entrants, incumbents may limit effective competition and innovation to the detriment of consumers. In this context, the question rises whether such a denial of a dominant firm to grant competitors access to its dataset could constitute a refusal to deal under Article 102 of the Treaty on the Functioning of the European Union and lead to competition law liability under the so-called ‘essential facilities doctrine’. Because of the particular nature of data collected by providers of online platforms and the new business models that are employed, potential refusals to share data give rise to new competition concerns. While the thesis concerns the application of EU competition law to a specific type of conduct, it also raises several broader and more fundamental issues including the appropriate analysis of multi-sided platforms under competition law, the trade-offs that have to be made between protecting different types of competition and innovation (competition in versus for the market; sustaining versus disruptive innovation), and the relationship between competition and data protection law. The thesis concludes that existing competition concepts are still fit for purpose in the digital economy, provided that their application is adapted to the peculiarities of online platforms. Even though the necessary tools are available, competition authorities and courts have to be willing to employ them in such a way as to ensure that the competition analysis reflects the competitive reality of digital markets. To that end, recommendations are provided for bringing the application of competition law in line with the demands of dynamic markets and for adequately protecting consumer welfare in the online environment. 7 8 Table of contents 1 Introduction .................................................................................................................... 15 1.1 Background ................................................................................................................ 15 1.2 Focus of the thesis ..................................................................................................... 16 1.3 Structure and methodology ........................................................................................ 17 Part I: Competition and Innovation on Online Platforms ....................................................... 19 2 Business models and economic characteristics of online platforms .......................... 21 2.1 Introduction ............................................................................................................... 21 2.2 Describing the online intermediary environment ...................................................... 21 2.2.1 Search engines .................................................................................................... 21 2.2.2 Social networks .................................................................................................. 24 2.2.3 E-commerce platforms ....................................................................................... 28 2.3 Multi-sided businesses ............................................................................................... 29 2.3.1 Multi-sidedness in general ................................................................................. 29 2.3.2 Establishing a multi-sided business .................................................................... 36 2.3.3 Multi-sided nature of online platforms ............................................................... 38 2.4 Network economy characteristics of online platforms .............................................. 43 2.4.1 Economies of scale ............................................................................................. 43 2.4.2 Network effects .................................................................................................. 44 2.4.3 Switching costs and lock-in ................................................................................ 50 2.4.4 Barriers to entry .................................................................................................. 57 2.5 Conclusion ................................................................................................................. 62 3 Evaluating the link between competition and innovation .......................................... 65 3.1 Introduction ............................................................................................................... 65 3.2 Measuring competition and innovation ..................................................................... 65 3.3 Economic theory and empirical evidence on the relationship between competition and innovation ...................................................................................................................... 69 3.3.1 Schumpeter ......................................................................................................... 69 3.3.2 Arrow ................................................................................................................. 70 9 3.3.3 Aghion ................................................................................................................ 72 3.3.4 Appraisal ............................................................................................................ 73 3.4 Different types of innovation ..................................................................................... 77 3.4.1 Disruptive versus sustaining innovation ............................................................ 77 3.4.2 Appraisal ............................................................................................................ 79 3.5 Conclusion ................................................................................................................. 83 4 Market definition and dominance on online platforms .............................................. 85 4.1 Introduction ............................................................................................................... 85 4.2 Market definition of multi-sided businesses .............................................................. 86 4.2.1 An approach for market definition of multi-sided platforms ............................. 86 4.2.2 Relevant product market for the user side .......................................................... 94 4.2.3 Relevant product market for the advertiser side ............................................... 100 4.2.4 Relevant geographic market for online platforms ............................................ 105 4.2.5 Economic tools for market definition on multi-sided platforms ...................... 106 4.3 Market definition in new economy industries ......................................................... 110 4.3.1 US initiative towards a framework for innovation in competition analysis ..... 110 4.3.2 EU approach towards innovation in competition enforcement ........................ 112 4.4 Assessing dominance on online platforms .............................................................. 117 4.4.1 Room for competition in markets in which multi-sided businesses operate .... 117 4.4.2 Establishing dominance of online platform providers ..................................... 120 4.4.3 From market shares to potential competition? ................................................. 122 4.5 Conclusion ............................................................................................................... 125 Part II: Data as Essential Facility ......................................................................................... 127 5 Setting the scene ........................................................................................................... 129 5.1 Introduction ............................................................................................................. 129 5.2 Role of data in the digital economy ......................................................................... 129 5.3 Protection of user data under data protection and intellectual property regimes .... 135 5.3.1 Protection of personal data under the European data protection regime .......... 136 5.3.2 Copyright and sui generis database protection for user data ............................ 137 5.3.3 Trade secret protection for datasets .................................................................. 143 10