Publications and Announcements
“Antitrust Enforcement Uncertainty and Evidentiary Standards in China: Evidence from Infringement Decisions, 2010 – 2022” by Zhixue Gao, Yannis Katsoulacos, Zili Wang and Lingbing Feng, July 2026
“Aligning Competition Policy and Industrial Policy in the EU±“ by Tomaso Duso and Martin Peitz
“Τhe Effect of Antitrust Evidentiary Standards on Firms’ Valuation, Legal Uncertainty and Deterrence” by Gao Zhixue, Katsoulacos Yannis, Wang Zili, Feng Lingbing, November 2025
“Price Coordination with Asymmetric Information Sharing: Theory and Evidence” by David P. Byrne, Nicholas de Roos, Matthew S. Lewis, Leslie M. Marx, and Xiaosong Wu. Working Paper, University of Melbourne (2025)
“Asymmetric Information Sharing in Oligopoly: A Natural Experiment in Retail Gasoline” by David P. Byrne, Nicolas de Roos, Matthew S. Lewis, Leslie M. Marx, and Xiaosong Wu. Journal of Political Economy. 133(7), 2031-2088 (2025)
“Canadian Competition Policy and the Acquisition of Small and Nascent Competitors” by Edward Iacobucci and Thomas W. Ross
“Colluding to raise prices: surcharges and “greedflation”” by Thomas W. Ross and Vartan Shadarevian
“Private Monopoly and Restricted Entry – Evidence from the Notary Profession” by Frank Verboven and Biliana Yontcheva
“Evaluating the Impact of Price Caps – Evidence from the European Roam-Like-at-Home Regulation” by Giulia Canziana, Gianluca Mazzarellab, Louis Ronchailc, Frank Verbovend, and Stefano Verzillo
“Public Communication and Collusion: New Screening Tools for Competition Authorities” by Tomaso Duso, Joseph E. Harrington Jr., Carl Kreuzberg, Geza Sapi.
“A Critique of Recent Remedies for Third-Party Pricing Algorithms and Why the Solution is not Restrictions on Data Sharing” by Joseph E. Harrington Jr.
“Economics and antitrust enforcement at the EU: an update” by Yannis Katsoulacos and Galatia Makri, Journal of Antitrust Enforcement, July 2025.
“(Non-cartel) antitrust (under)enforcement and the effects-based approach” by Yannis Katsoulacos, European Competition Journal, March 2025.
“(Non-Cartel) Antitrust Underenforcement and the Economics-Based Approach” by Yannis Katsoulacos, November, 2024.
“European market oversight reforms: a critical look at types and objectives of intervention” by Yannis Katsoulacos, March, 2024.
“Apple’s exclusionary app store scheme: An existential moment for the Digital Markets Act” by Jacques Crémer, Paul Heidhues, Monika Schnitzer, Fiona Scott Morton, March 2024.
“Antitrust and the political economy: Part 1” by Cristina Caffarra, Jan. 2024.
“Antitrust and the political economy: Part 2” by Cristina Caffarra, Jan. 2024.
“Competitor coupons: a remedy for residual collusion” by Joseph E. Harrington, Jr.
“Horizontal price exchanges” by Joseph E. Harrington, Jr. and Christopher R. Leslie.
“Canada’s Competition Act: The Reform Process Continues” by Thomas W. Ross.
“Canada Looks at Revising Its Competition Act” by Thomas W. Ross.
“Settlements in the presence of leniency programs: Costs and benefits” by Matthew Strathearn, Zhiqi Chen, Thomas W. Ross.
“The role of economics and the quality of antitrust enforcement in UK: an empirical analysis of the CMA/OFT antitrust cases”, by Vasiliki Bageri and Yannis Katsoulacos, Dec. 2023.
“Choosing Assessment Procedures in Antitrust Enforcement in Different Markets and Countries: a Proposal for Extending the Decision-Theoretic Approach”, by Yannis Katsoulacos and David Ulph, Managerial and Decision Economics.
“Could a move to more presumption-based Legal Standards be justified, for the big-tech digital markets, on error-cost minimizing grounds?”, in Antitrust and the Digital Economy: Presumptions, Legal Standards and Key Challenges”, by Yannis Katsoulacos, Concurrences Antitrust Publications, edited by Yannis Katsoulacos.
“Accelerating antitrust enforcement through the use of more presumption-based Legal Standards for the big-tech digital markets”, by Yannis Katsoulacos, Concurrences Review, 2003 – 2.
“A dynamic and workable effects based approach to abuse of dominance” by Linsey McCallum, Inge Bernaerts, Massimiliano Kadar, Johannes Holzwarth, David Kovo, Marie Lagrue, Edouard Leduc, Luca Manigrassi, Jorge Marcos Ramos, Isabel Pereira Alves, Vera Pozzato, Pinelopi Stamou, Competition Policy Brief, March, 2023
“Measuring the Effectiveness of Anti-Cartel Interventions in the Shadow of Recidivism” by Yannis Katsoulacos, Evgenia Motchenkova and David Ulph, Managerial and Decision Economics, forthcoming 2023
“Cartel Screening and Machine Learning”, by Joseph E. Harrington and David Imhof
“Choosing legal rules or standards in antitrust enforcement: A proposal for extending and facilitating the use of the decision‐theoretic approach” by Yannis Katsoulacos and David Ulph, Managerial and Decision Economics, Dec. 2022
“Optimal Assessment Procedures and Legal Standards in Antitrust Enforcement” by Yannis Katsoulacos and David Ulph, March 2022
“Why Should Legal Standards in Antitrust Enforcement be Different in Developing than in Mature Jurisdictions: A Decision-Theoretic Approach” by Yannis Katsoulacos, Investigaciones CeCo
“Cartel screening is for companies, law firms, and economic consultancies, not just competition authorities” by Joseph E. Harrington, Jr., Investigaciones CeCo
“The role of economics and the type of legal standards in antitrust enforcement by DGCOMP: an empirical investigation” by Yannis Katsoulacos and Galateia Makri, Journal of Antitrust Enforcement, 2021, Editors’ Choice
“Optimal Legal Standards for Competition Policy Further Revisited” by Yannis Katsoulacos and David Ulph, forthcoming in Economics Letters, 2020
“Collusion in Plain Sight: Firms’ Use of Public Announcements to Restrain Competition”
by Joseph E. Harrington, Jr. and Ehson Kashfipour
“Optimal Legal Standards for Competition Policy Revisited” by Jacob Seifert
“The role of economics: testing for the extent of effects-based enforcement and its relation to the judicial review in different countries” by Y. Katsoulacos, S. Avdasheva, K. Benetatou, S. Golovanova and G. Makri (2020)
“The role of economics and the type of legal standards in antitrust enforcement by the EC: an empirical investigation” by Y. Katsoulacos and G. Makri (2020)
“Market Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market” by Marc Bourreau, Yutec Sun and Frank Verboven
“Attention Oligopoly” by Andrea Prat and Tommaso Valletti
“Combining Cartel Penalties and Private Damage Actions: The Impact on Cartel Prices” by Yannis Katsoulacos, Evgenia Motchenkova and David Ulph, International Journal of Industrial Organization, 2020
“The role of economic analysis in Competition Law enforcement: the case of Russia” by S. Avdasheva, S. Golovanova and Y. Katsoulacos
“On the Choice of Legal Standards: a Positive Theory for Comparative Analysis”, by Yannis Katsoulacos, European Journal of Law and Economics, 2019
“On the Concepts of Legal Standards and Substantive Standards (and how the latter influences the choice of the former)”, by Yannis katsoulacos, Journal of Antitrust Enforcement, 2019
“Myths and Numbers on Whistleblower Rewards” by Theo Nyreröd and Giancarlo Spagnolo
“On the Choice of Legal Standards: a Positive Theory for Comparative Analysis” by Yannis Katsoulacos, January 2018
“Evaluating market consolidation in mobile communications” by Christos Genakos, Tommaso Valletti and Frank Verboven
“Toward a Coherent Policy on Cartel Damages” by Jens-Uwe Franck and Martin Peitz
“Optimal institutional structure of Competition Authorities under reputation maximization: a model and empirical evidence from the case of Russia” by S. Avdasheva, S. Golovanova, Y. Katsoulacos, Tsutsulina, D. June 2017, forthcoming in Review of Industrial Organization, 2018020/02
“Penalizing on the basis of the severity of the offence: A sophisticated revenue-based cartel penalty” by Yannis Katsoulacos, Evgenia Motchenkova and David Ulph, May 2017
“Judicial Review, Economic Evidence and the Choice of Legal Standards by Utility Maximizing Competition Authorities” by Yannis Katsoulacos, May 2017
“Legal standards and the role of economics in Competition Law enforcement” by Yannis Katsoulacos, Svetlana Avdasheva and Svetlana Golovanova, Published in European Competition Journal
“Leniency and Damages” by Paolo Buccirossi, Catarina Moura Pinto Marvão & Giancarlo Spagnolo
“Cartels and Leniency: Taking Stock of What We Learnt” by Giancarlo Spagnolo & Catarina Moura Pinto Marvão
“Revenue-based penalties could work after all” by Yannis Katsoulacos, Evgenia Motchenkova & David Ulph, October 2016
“Legal Standards and the Role of Economic Analysis in Competition Law Enforcement” by Yannis Katsoulacos, September 2016
“Measuring the Effectiveness of Anti-Cartel Interventions: A Conceptual Framework” by Yannis Katsoulacos, Evgenia Motchenkova & David Ulph, March 2016
“Optimal Enforcement Procedures and Penalties under Legal Uncertainty and a Total Welfare Substantive Standard” by Yannis Katsoulacos & David Ulph, October 2015
“Penalizing Cartels: The Case for Basing Penalties on Price Overcharge” by Yannis Katsoulacos, Evgenia Motchenkova and David Ulph, Published in International Journal of Industrial Organisation, August 2015
“Legal Uncertainty, Competition Law Enforcement Procedures and Optimal Penalties” by Yannis Katsoulacos & David Ulph, Published in European Journal of Law Economics, June 2015
2nd ATE Symposium on “Antitrust Economics and Competition Policy: Mergers, Partnerships, and Innovation” on 15-16 December 2014, hosted by the UNSW Australia Business School.
“Legal Uncertainty, Competition Law Enforcement Procedures and Optimal Penalties Taking Into Account Adminstrative Effectiveness” by Yannis Katsoulacos & David Ulph, June 2014
“Competition Authority Substantive Standards and Social Welfare” by Yannis Katsoulacos, Eleni Metsiou and David Ulph, May 2014
“Compulsory licensing and access to drugs” (to be published in European Journal of Health Economics, 2014) by Charitini Stavropoulou and Tommaso Valletti [this paper was presented in CRESSE 2013 Conference]
“Unbundling the incumbent: Evidence from UK broadband” by Mattia Nardotto, Tommaso Valletti and Frank Verboven
“Nested logit or random coefficients logit? A comparison of alternative discrete choice models of product differentiation” by Laura Grigolon and Frank Verboven
“Entry and Competition in Di¤erentiated Products Markets” by Catherine Schaumans and Frank Verboven
“Discounts as a Barrier to Entry” by Nicolás Figueroa, Enrique Ide and Juan-Pablo Montero
“When Can We Expect a Corporate Leniency Program to Result in Fewer Cartels?” by Joseph E. Harrington, Jr. and Myong-Hun Chang
“Cartel Sales Dynamics when Monitoring for Compliance is More Frequent than Punishment for Non-Compliance” by Joseph E. Harrington, Jr. and Juan-Pablo Montero
“Penalties and the Deterrence of Unlawful Collusion” by Joseph E. Harrington, Jr.
“Quantitative price tests in antitrust market definition with an application to the savory snacks markets” (forthcoming Journal of Agricultural and Food Industrial Organization) by Y. Katsoulacos , I. Konstantakopoulou, E. Metsiou and E. Tsionas [a previous version of this paper was presented in CRESSE 2012 Conference]
“Cooperation vs. Collusion: How essentiality shapes co-optation” by Patrick Rey and Jean Tirole (presented in CRESSE 2013)
“The Distortive Effects of Antitrust Fines Based on Revenue” by Vasiliki Bageri, Yannis Katsoulacos and Giancarlo Spagnolo (Economic Journal, 2013)
“Antitrust Penalties and the Implications of Empirical Evidence on Cartel Overcharges” by Yannis Katsoulacos and David Ulph (Economic Journal, 2013)
“Legal Uncertainty and the Choice of Enforcement Procedures” by Yannis Katsoulacos and David Ulph
“Recent Advances in the Analysis of Competition Policy and Regulation” edited by Joseph E. Harrington Jr. and Yannis Katsoulacos
EU Rules Applicable to State Aid
EU Competition law – rules applicable to merger control
Short term trade finance and credit insurance in the European Union
“Regulatory Burden, Competition and Growth: a Survey” by Y. Katsoulacos, G. Makri and Vasiliki Bageri
“Choice of Enforcement Procedures under Legal Uncertainty” by Y. Katsoulacos & D. Ulph
Commission adopts revised competition rules on horizontal co-operation agreements
Competition Policy International: CPI Antitrust Chronicle
State Aid: New Handbook on Enforcement of EU State aid law by national courts
EU law: Commission acts to ensure that European legislation is fully and properly implemented
Competition Policy Newsletter 2010/1 published
“Legal Uncertainty and Optimal Penalties” by Yannis Katsoulacos and David Ulph
“Optimal Enforcement Structures for Competition Policy: The Implications of Judicial Reviews and Internal Error Correction Mechanism” by Yannis Katsoulacos and David Ulph