Edited by Ioannis Kokkoris, Professor of Competition Law and Economics and Claudia Lemus, Senior Research Fellow, Centre for Commercial Law Studies, Queen Mary University of London, UK

• Contents:Foreword xiOlivier GuersentPreface xivList of abbreviations xvIntroduction to the Research Handbook on the Law and Economics ofCompetition Enforcement 1Ionnis Kokkoris1 Data collaboratives, competition law and the governance of EU data spaces 8Nicolo Zingales2 Price fixing: public and private enforcement 50Daniel L. Rubinfeld3 Pricing algorithms: the risk of collusion and personalised pricing 64Antonio Gomes and Pedro Gonzaga4 Competition enforcement: is the abuse toolbox adequate? 76Maurits Dolmans, Henry Mostyn and Patrick F. Todd5 Market power and big data: mapping the role of data under Article 102 TFEU 122Massimiliano Kadar and Luca Manigrassi6 Data-related competition concerns in a digital era: key challenges foreconomic assessment 150Yan Yu, Chris Whelan and Jack Mays7 Power imbalances in online marketplaces: at the crossroads ofcompetition law and regulation 170Despoina Mantzari8 Normative goals in merger control: why merger control should notattempt to achieve “better” outcomes than competition 193Stefan Thomas9 Addressing national security concerns in the merger context 217Kyriakos Fountoukakos, Veronica Roberts and Ruth Allen10 Common ownership and merger control enforcement 243José Azar and Anna Tzanaki11 The economics of merger control in a dynamic world: a focus on therelevant counterfactual 280Matthew Johnson and Ilaria Fanton12 Killer acquisitions? Evidence and potential theories of harm 300Pierre Régibeau13 The boundaries of public interest in merger control: taking into accountnon-competition issues including industrial policy and environmentalprotection 324Antonio Capobianco and Gaetano Lapenta14 Perspectives on digital regulation 347Liza Gormsen15 Digital agoraphobia: exploitative abuses in digital markets 369Maria Ioannidou16 Antitrust enforcement in the digital markets: the forgotten role of the courts 390Claudia Lemus17 Is consumer welfare still fit for purpose in the EU competition regime? 410Ioannis Kokkoris and Athanassios Skourtis18 Competition enforcement and sustainability: the odd couple 448Cristina VolpinConclusions 472Ioannis KokkorisIndex

‘Competition law and policy have a greater prominence today than at any time since the emergence of “antitrust” in the US at the turn of the nineteenth century. This volume of fascinating chapters enhances our understanding of the numerous and diverse challenges for all of us involved in this crucial part of our political economy.’