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What is the "right" geographic market definition?

Genakos, Christos; Kampouris, Themistoklis - 2026

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015597377

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What is the "right" geographic market definition?

Genakos, Christos; Kampouris, Themistoklis - 2026

Book / Working Paper

What is the "right" geographic market definition?

Genakos, Christos; Kampouris, Themistoklis - 2026

Book / Working Paper

Beyond horizontal harm : digital ecosystems, innovation, and the future of European merger control

Breide, Lukas; Budzinski, Oliver; Mendelsohn, Juliane; … - 2026

This paper develops four proposals to modernize merger control in the European Union and beyond. First, merger control should be reinforced and reinvigorated to prevent the further rising of market power and to stop the ongoing decline of competition intensity. Second, the analysis highlights...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10016082101

Measuring markets for network goods

Bursztyn, Leonardo; Gentzkow, Matthew Aaron; Jiménez … - 2025

Market definition is essential for antitrust analysis, but challenging in settings with network effects, where substitution patterns depend on changes in network size. To address this challenge, we conduct an incentivized experiment to measure substitution patterns for TikTok, a popular social...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015434073

Customer Overlap and Diversion Ratios

Einav, Liran; Guido, Mariana D.; Klenow, Peter J. - 2026

We define the concept of customer overlap of product j with product k as the share of j's customers who buy k. We then argue that, in appropriate contexts, customer overlaps are an excellent proxy for diversion ratios, a useful and popular way to summarize competition between sellers of...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015593767

A distance-based algorithm for defining antitrust markets

Taragin, Charles; Taylhardat, Marco - 2025

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015438386

Using pass-through as an economic tool : on geographical market definition, competition and number of market players, and vertical relations

Dimas, Athanasios - 2026

Persistent link: https://ebvufind01.dmz1.zbw.eu/10016083429

The dynamics of market boundaries and the role of systemic market power

Stöhr, Annika; Budzinski, Oliver - 2025

Identifying the boundaries of a market belongs to the important practices in most areas of antitrust and competition policy. While they are established practices for market definition and delineation, dynamic processes of competition and the new phenomenon of (digital) ecosystems of markets...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015564063

Market definition through demand-and-supply estimations, with an application to the Argentine dishwashing detergent industry

Coloma, Germán - 2025

This paper develops a method for market definition using demand-and-supply estimations. That method is then applied to the Argentine dishwashing detergent industry, using data from the years 2022-2024. The results are compared to the ones obtained using only demand estimations, and the...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015581436

The 2023 Merger Guidelines : law, fact, and method

Hovenkamp, Herbert - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015178343

The role of geographic market definition in analysis of grocery retailing

Wang, Yanghao; Çakır, Metin; Park, Timothy A. - 2025

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015166742

Market definition : a sensitivity analysis

Koh, Paul S. - 2025

Persistent link: https://ebvufind01.dmz1.zbw.eu/10016082630

Evolution of the Merger Guidelines : is this fox too clever by half?

Shapiro, Carl - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015178349

Relevant labour market : missing in the new market definition notice

Broulík, Jan - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015627706

EU Market Definition : Is It Outdated?

Juma, Peter M. - 2023

The Treaty of Rome, whose eighty-fifth article forbade agreements with the purpose of fixing prices or stifling competition, served as the first vehicle for the introduction of competition law into the Economic Community of Europe. The European Competition Commission was given guidance in using...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014256143

The Role of Market Definition in Setting Antitrust Fines

Mullan, Hugh - 2023

The value of sales of an undertaking infringing antitrust law is a key determinant of the size of the fine levied by a competition authority. European competition authorities rely only on the turnover the undertaking receives from the products in relation to which the infringing conduct...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014260021

Kopplungsgeschäfte in der digitalen Wirtschaft : Marktabgrenzung und Marktmissbrauch in der Plattformökonomie

Yildiz, Okan - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015083652

Abuse of Dominance Position in Relevant Market : Analysis of DLF Case

Goswami, Parineeta; Sharma, Ananya - 2023

As an overall proposition competition law comprises of rules that are planned to ensure the course of the competition to expand consumer welfare. Competition law has developed at a marvellous rate lately because of the gigantic changes in political reasoning and economic conduct that have...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014262770

Introduction : observations on the 2023 Merger Guidelines

Blair, Roger D. - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015178335

Competition Law in Digital Era – How to Define the Relevant Market?

Patakyova, Maria T. - 2023

Competition law serves as an important tool for regulation of undertakings. In order to conduct a competition law analysis, one must first define the relevant market. However, this task is becoming more intricate in today’s digital era, especially in relation to so-called zero-price markets....

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014343787

The 2023 Merger Guidelines and market definition : doubling down or folding?

Kaplow, Louis - 2024

Persistent link: https://ebvufind01.dmz1.zbw.eu/10015178338

Supply-Side Factors Identify Market Participants, Not Markets : Global Antitrust Institute Comment on the EC's Draft Notice on Defining Relevant Markets for EU Competition Law

Raskovich, Alexander; Ginsburg, Douglas H.; Kobayashi, … - 2023

The European Commission's recent draft Notice describes the use of supply-side substitution factors in defining relevant markets for the application of competition law. Expanding a defined market to include goods not substitutable on the demand side, based on the competitive strength of a broad...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014263637

Seven Myths of Market Definition

Sullivan, Sean - 2022

Roughly a year into control of the federal antitrust agencies, President Biden’s antitrust team is turning its attention to policies and enforcement practices. They seem poised to start, as antitrust so often does, with market definition. This is an appropriate target for review but also...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013290582

The year in review : economics at the antitrust division, 2022-2023

Athey, Susan; Chicu, Mark; Krishna, Malika; Marinescu, Ioana - 2023

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014502760

Qualitative Market Definition

Nachbar, Thomas - 2022

Modern antitrust law has come under intense criticism in recent years, with a bipartisan chorus of complaints about the power of technology and internet platforms such as Google, Amazon, Facebook, and Apple. A fundamental issue in these debates is how to define the “market” for the purposes...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013294895

Replacing the structural presumption

Kaplow, Louis - 2022

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013202650

Antitrust economics of cryptocurrency mining

Deuflhard, Florian; Heller, Christian-Philipp - 2023

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014314310

Relevant markets and market power of mobile apps

Kawaguchi, Kohei; Kuroda, Toshifumi; Sato, Susumu - 2023

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014384271

Relevant Market in the Google AdTech Case

Fruits, Eric; Manne, Geoffrey A.; Radic, Lazar - 2022

Digital advertising is the economic backbone of much of the Internet. But complaints have recently emerged from a number of quarters alleging the digital advertising market is monopolized by its largest participant: Google. Most significantly, a lawsuit first filed by the State of Texas and 17...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014030691

Contribution of Gregory J. Werden on Commission Notice on the Definition of the Relevant Market for the Purposes of Union Competition Law

Werden, Gregory J. - 2022

The European Commission sought public comment on a revision of its Notice on the definition of the relevant market. Among other things, this contribution advises the Commission to: acknowledge the analytic purpose served by the relevant market in competitive assessment; apply the hypothetical...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014264908

(No) access to the standard under Art.102 TFEU

Scheer, Mathias - 2023

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014377748

Microsoft/Activision – Market Definition and Theories of Harm Under EU Competition Law

Ziermann, Fabian - 2022

Whilst the acquisition of Activision Blizzard by Microsoft is yet to be notified to the European Commission, once notified it will certainly require a substantial competition law assessment. This article discusses the Commission’s decisional practice relating to market definition in gaming...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10014081923

The Relevant Market Concept in Competition Law and Its Application to Digital Markets : A Comparative Analysis of the EU, US, and Brazil

Eben, Magali; Robertson, Viktoria H.S.E - 2021

Market definition is a core concept of competition law in the European Union, the United States and Brazil. The present contribution first surveys the general approach to market delineation in these three jurisdictions. Against this background, it then embarks on a discussion of market...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013242062

The year in review : economics at the Antitrust Division 2021-2022

Athey, Susan; Pittman, Russell W.; Zhang, Fan - 2022

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013486172

Market Definition in the Platform Economy

Franck, Jens-Uwe; Peitz, Martin - 2021

The article addresses the role market definition can play for EU competition practice in the platform economy. The focus is on intermediaries that bring together two (or more) groups of users whose decisions are interdependent and which therefore are commonly referred to as “two-sided...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013243081

Cross-market impact of platforms' activities : a secondary relevant market approach

Lee, Ki Jong - 2022

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013348995

Antitrust in Attention Markets : Definition, Power, Harm

Newman, John M. - 2021

Despite its vital role in the modern marketplace, attention has largely escaped the notice of the antitrust community. Existing discourse exhibits a variety of misconceptions and flawed prescriptions. One example is the widely held notion that attention markets necessitate two-sided platform...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013248621

Some Economic Aspects of Antitrust Analysis in Dynamically Competitive Industries

Schmalensee, Richard; Evans, David S. - 2021

Competition in many important industries centers on investment in intellectual property. Firms engage in dynamic, Schumpeterian competition for the market, through sequential winner-take-all races to produce drastic innovations, rather than through static price/output competition in the market....

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013248676

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Some Economic Aspects of Antitrust Analysis in Dynamically Competitive Industries

Schmalensee, Richard; Evans, David S. - 2013

Book / Working Paper

Antitrust Market Definition for Digital Ecosystems

Robertson, Viktoria H.S.E - 2021

Competition law needs to be able to rely on its most fundamental analytical tools in order to properly carry out competitive assessments. This includes market definition as the first step in virtually any competition case. And this also holds true in digital markets. Market definition has risen...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013227675

Modular Market Definition

Sullivan, Sean - 2021

Surging interest in antitrust enforcement is exposing, once again, the difficulty of defining relevant markets. Past decades have witnessed the invention of many tests for defining markets, but little progress has been made, or even attempted, at reconciling these different tests. Modern market...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013235381

Vertical relations, pass-through, and market definition : Evidence from grocery retailing

Haucap, Justus; Heimeshoff, Ulrich; Klein, Gordon; … - 2021

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012802454

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Vertical relations, passthrough and market definition : evidence from grocery retailing

Haucap, Justus; Heimeshoff, Ulrich; Klein, Gordon; … - 2020

Book / Working Paper

Vertical Relations, Pass-Through, and Market Definition : Evidence from Grocery Retailing

Haucap, Justus; Heimeshoff, Ulrich; Klein, Gordon; … - 2021

Book / Working Paper

Disaggregating Market Definition : AmEx and a Plural View of Market Definition

Francis, Daniel; Ezrielev, Jay - 2021

The orthodox view of market definition in antitrust cases is that the same principles of market definition should apply at all stages of an antitrust analysis, and, in particular, that markets should be defined for virtually all purposes by reference to demand-side substitutability. Commentators...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013215569

EU Merger Control in Differentiated Product Industries

Walsh, Patrick Paul; Mariuzzo, Franco; Whelan, Ciara - 2021

EU Merger Control Regulation No 4064/89 tended to rely on a dominance test, based on the market share of undertakings, to indicate the level and potential changes in market power. The use of such in differentiated product industries is questionable. New EC Merger Regulation No 139/2004...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013318909

Market Definition

Sullivan, Sean - 2021

Monopolization, in the United States, and abuse of dominance, in the European Union, embody different philosophies about how best to police single firm conduct in competition law. Surprisingly, their disagreement ends at market definition. Both doctrines define relevant markets by similar...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013222529

A New Era for Antitrust Market Definition

Robertson, Viktoria H.S.E - 2021

A new era is dawning for market definition under EU competition law. It is being rung in by five distinct developments that, together, foreshadow the future of the relevant market as a tool of competition law. A plethora of policy reports on digital markets have made recommendations for...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10013237645

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A new era for antitrust market definition

Robertson, Viktoria H.S.E - 2021

Book / Working Paper

Strategic uncertainty and market size : an illustration on the Wright amendment

Gagnepain, Philippe; Gauthier, Stéphane - 2021

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012643069

Support study accompanying the evaluation of the Commission Notice on the definition of relevant market for the purposes of Community competition law : final report

2021

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012656143

Assessing EU merger control through compensating efficiencies

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021

Worldwide, the overwhelming majority of large horizontal mergers are cleared by antitrust authorities unconditionally. The presumption seems to be that efficiencies from these mergers are sizeable. We calculate the compensating efficiencies that would prevent a merger from harming consumers for...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012659077

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Assessing EU merger control through compensating efficiencies

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021

Book / Working Paper

Assessing EU merger control through compensating efficiencies

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021

Book / Working Paper

When "the" market loses its relevance: an empirical analysis of demand-side linkages in platform ecosystems

Smichowski, Bruno Carballa; Duch-Brown, Néstor; … - 2021

Recent literature has shown that the existence of supply and demand-side non-generic complementarities ("demand-side linkages") within ecosystems raises questions about the pertinence of defining a single relevant market comprising substitute products ("substitutability approach"). However,...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012695130

Market concentration in Europe : evidence from antitrust markets

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021 - This draft: January 20, 2021

An increasing body of empirical evidence is documenting trends toward rising concentration, profits, and markups in many industries around the world since the 1980s. Two major criticisms of these studies is that concentration and market shares are poorly measured at the national industry level...

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012426540

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Market concentration in Europe : evidence from antitrust markets

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021

Book / Working Paper

Market concentration in Europe : evidence from antitrust markets

Affeldt, Pauline Luise; Duso, Tomaso; Gugler, Klaus; … - 2021

Book / Working Paper

Delineating zero-price markets with network effects : an analysis of free messenger services

Nakamura, Akihiro; Ida, Takanori - 2021

Persistent link: https://ebvufind01.dmz1.zbw.eu/10012616110