Global Convergence of Digital Antitrust Regimes

Introduction

Global convergence of digital antitrust regimes refers to the increasing similarity among competition-law systems in how they identify, investigate, and remedy anticompetitive conduct in digital markets. Although jurisdictions retain different statutes, institutional structures, and legal traditions, regulators increasingly confront the same economic problems: network effects, data concentration, self-preferencing, app-store restrictions, interoperability barriers, algorithmic pricing, platform exclusion, digital mergers, and ecosystem leverage.

The convergence is not complete harmonisation. Rather, it is a process of functional convergence: different legal systems use different statutory provisions but increasingly reach similar conclusions about the competitive risks created by powerful digital platforms.

1. Why Digital Antitrust Has Produced Global Convergence

Traditional competition law was largely designed around relatively stable markets, observable prices, and identifiable products. Digital markets create different conditions.

A. Zero-price and attention markets

Consumers may pay no monetary price for search engines, social networks, video platforms, or messaging services. Competition therefore has to consider:

• quality;
• privacy;
• innovation;
• attention;
• data collection;
• switching costs; and
• ecosystem dependence.

B. Network effects

A platform becomes more valuable as more users join it. This can produce winner-takes-most or highly concentrated markets.

C. Data advantages

Large platforms may accumulate extensive behavioural, transactional, location, advertising, or commercial data. Data can become a competitive input and may create barriers to entry.

D. Ecosystem leverage

A company possessing market power in one digital service can use that position to reinforce another service through:

• tying;
• bundling;
• self-preferencing;
• default arrangements;
• technical restrictions;
• interoperability limitations; and
• preferential access to platform data.

E. Algorithmic decision-making

Algorithms can independently alter prices, rankings, recommendations, access conditions, and marketplace rules. This has forced authorities to reconsider traditional concepts of agreement, intent, attribution and effects.

2. Major Dimensions of Global Convergence

A. Convergence on Platform Market Power

Authorities increasingly recognise that digital platforms may possess substantial power even where conventional price-based market analysis is inadequate.

Relevant factors include:

1. user numbers;
2. network effects;
3. data accumulation;
4. switching costs;
5. economies of scale;
6. ecosystem integration;
7. control over interfaces;
8. access to essential business users; and
9. barriers to multi-homing.

Thus, competition analysis increasingly examines structural power, rather than simply asking whether consumers pay higher prices.

B. Convergence on Self-Preferencing

Self-preferencing occurs where a vertically integrated platform gives preferential treatment to its own products or services.

Examples include:

• ranking one's own products above rivals;
• giving one's own advertising service privileged access;
• favouring one's payment system;
• integrating one's own services into operating systems; and
• restricting competing services.

The European Union's Google Shopping litigation became particularly important because it demonstrated that discriminatory treatment within a platform ecosystem could constitute an abuse of dominance.

3. Convergence on App-Store Regulation

App stores have become a major area of international convergence.

Competition authorities have investigated:

• mandatory payment systems;
• excessive commissions;
• anti-steering rules;
• restrictions on alternative payment systems;
• restrictions on alternative app stores;
• discriminatory access;
• tying of payment services; and
• restrictions on communication between developers and consumers.

The underlying concern is increasingly described as platform gatekeeper power.

This is particularly significant because jurisdictions are moving from purely ex-post abuse-of-dominance enforcement toward ex-ante digital-market regulation.

4. Convergence on Interoperability and Access

Digital competition authorities increasingly consider interoperability important where a dominant platform controls an infrastructure upon which competitors depend.

Possible remedies include:

• API access;
• data portability;
• interoperability;
• technical access;
• non-discrimination;
• switching mechanisms; and
• restrictions on exclusive technical standards.

The theory resembles traditional essential-facilities reasoning but is adapted to digital ecosystems.

5. Convergence on Data as a Competitive Resource

Data has become central to modern antitrust analysis.

Competition authorities increasingly examine:

Data concentration

Whether a dominant platform possesses data unavailable to competitors.

Data combination

Whether a company combines datasets from multiple services to strengthen market power.

Data portability

Whether users can transfer data to competing services.

Data access

Whether competitors require access to particular datasets to compete effectively.

Privacy as a competitive parameter

Poor privacy conditions may potentially constitute a dimension of quality competition where consumers cannot realistically switch to alternatives.

This creates increasing interaction between competition law, privacy law and digital regulation.

6. Convergence on Digital Mergers

Traditional merger thresholds can fail to capture acquisitions of emerging digital competitors because start-ups may have:

• low turnover;
• valuable data;
• innovative technology;
• rapidly growing user bases; and
• significant future competitive potential.

Consequently, jurisdictions increasingly examine killer acquisitions and acquisitions of nascent competitors.

The policy shift is from:

"How much revenue does the target currently generate?"

toward:

"What competitive constraint could the target become?"

7. Convergence on Algorithmic Competition

Algorithms create new forms of potential coordination.

Competition authorities examine:

• algorithmic price coordination;
• common pricing software;
• automated monitoring;
• personalised pricing;
• algorithmic exclusion;
• ranking manipulation;
• automated collusion;
• recommendation systems; and
• AI-assisted competitive decision-making.

A major conceptual issue is whether traditional cartel law—which often requires some form of agreement or concerted practice—adequately addresses autonomous algorithmic behaviour.

8. Convergence Between Ex-Post and Ex-Ante Regulation

One of the most important global developments is the convergence toward a dual model.

Ex-post competition law

Authorities investigate conduct after it occurs.

Examples:

• abuse of dominance;
• exclusionary conduct;
• tying;
• refusal to supply;
• discriminatory treatment.

Ex-ante digital regulation

Regulators impose obligations before competitive harm occurs.

Examples:

• interoperability requirements;
• anti-self-preferencing rules;
• data portability;
• anti-steering obligations;
• restrictions on combining personal data;
• obligations concerning app stores.

The EU Digital Markets Act represents the strongest institutional example of this model, but similar ideas increasingly influence regulatory thinking elsewhere.

9. Six Major Case Laws

1. Google Shopping — European Union

Case: Google and Alphabet v Commission (Google Shopping), C-48/22 P, EU Court of Justice, 2024.

Facts

The European Commission found that Google had abused its dominant position in general search by systematically favouring its own comparison-shopping service in search results while placing competing comparison-shopping services at a disadvantage.

Legal issue

The central question was whether Google's preferential treatment of its own comparison-shopping service could constitute abusive conduct under Article 102 TFEU.

Significance

The case is important for digital antitrust because it demonstrates that:

• search rankings can have competitive significance;
• platform neutrality can become an antitrust issue;
• self-preferencing can produce exclusionary effects; and
• dominance can arise from control over an important digital gateway.

Global significance

The reasoning has influenced international discussions concerning platform neutrality, ranking systems and self-preferencing.

2. Google Android — European Union

Case: Google and Alphabet v Commission (Google Android), C-738/22 P, EU Court of Justice, 2025.

Facts

The European Commission challenged several contractual restrictions imposed by Google concerning Android devices, including arrangements involving Google Search, Chrome, and the Play Store.

Legal issue

The case concerned whether Google's contractual ecosystem restrictions could reinforce its dominant position and restrict competition.

Significance

The case illustrates how digital antitrust increasingly examines the entire ecosystem, rather than analysing individual products in isolation.

The important concepts include:

• tying;
• defaults;
• pre-installation;
• ecosystem reinforcement;
• distribution advantages; and
• barriers to competing mobile ecosystems.

Global significance

Mobile operating systems are inherently international. Consequently, enforcement against ecosystem restrictions in one major jurisdiction can influence regulatory thinking elsewhere.

3. Apple App Store — United States

Case: Epic Games, Inc. v Apple Inc., U.S. District Court for the Northern District of California, 2021.

Facts

Epic Games challenged Apple's restrictions governing distribution of iOS applications and Apple's payment system.

Issues

The litigation addressed:

• app distribution;
• Apple's payment system;
• commissions;
• anti-steering provisions;
• alternative payment mechanisms; and
• Apple's control over the iOS ecosystem.

Significance

Although the court did not accept every antitrust theory advanced by Epic, the case demonstrated the enormous importance of app-store governance as a competition issue.

Global significance

App-store restrictions subsequently became a major enforcement topic in the EU, UK, Australia, Japan, South Korea and other jurisdictions.

4. Epic Games v Google — United States

Case: Epic Games, Inc. v Google LLC, U.S. District Court for the Northern District of California, 2023.

Facts

Epic challenged Google's control over Android app distribution and Google's payment arrangements.

Legal significance

The jury found Google liable on Epic's antitrust claims concerning Android app distribution and Google Play's billing practices.

The case highlighted concerns involving:

• app-store monopoly power;
• exclusionary agreements;
• payment-system restrictions;
• developer dependence; and
• alternative distribution.

Global significance

Together with the Apple litigation, the case contributed to the global regulatory movement toward treating mobile app stores as critical digital gatekeepers.

5. Qualcomm — European Union

Case: Qualcomm v Commission, T-235/18, General Court of the European Union, 2022.

Facts

The Commission had investigated Qualcomm's payments to Apple and concluded that the arrangements could exclude competing LTE chipset suppliers.

Significance

The case demonstrated the importance of analysing technology ecosystems and strategic supply relationships in digital and high-technology markets.

The General Court annulled the Commission's decision because of procedural and analytical shortcomings, particularly concerning the assessment of the alleged exclusionary effects.

Global significance

The litigation demonstrates that convergence does not mean that regulators are given unlimited discretion. Digital antitrust still requires:

• rigorous economic analysis;
• evidence of competitive effects;
• proper causation; and
• procedural fairness.

6. Microsoft/Activision Blizzard — European Union

Case: Microsoft/Activision Blizzard, European Commission merger decision, 2023.

Facts

Microsoft proposed acquiring Activision Blizzard, creating a major combination involving gaming software, content and distribution platforms.

Competition concerns

The Commission examined issues involving:

• cloud gaming;
• access to gaming content;
• foreclosure;
• licensing;
• distribution;
• vertical integration; and
• emerging cloud-gaming markets.

The Commission ultimately approved the transaction subject to extensive commitments concerning cloud streaming rights.

Global significance

This illustrates the modern approach to digital mergers: regulators increasingly assess future technological ecosystems, not merely existing market shares.

10. Other Important Comparative Authorities

Several additional matters reinforce the convergence trend.

Google Search / Search Bias

European enforcement against Google demonstrates increasing concern with dominant search intermediaries controlling visibility and access to consumers.

Meta/Facebook Data

European competition litigation concerning Facebook's combination of data and services illustrates the growing relationship between data protection and competition law.

Amazon Marketplace

Authorities have examined Amazon's use of marketplace data and the relationship between its platform and competing sellers.

Booking.com

European authorities have examined parity clauses and restrictions imposed by online travel platforms, demonstrating convergence around platform intermediation and contractual restrictions.

Intel and exclusionary rebates

Although predating the modern platform era, the Intel litigation remains important for the broader global movement toward effects-based analysis of exclusionary conduct.

11. Comparative Global Model

12. Why Convergence Is Not Complete

Despite substantial similarities, significant differences remain.

A. Different legal foundations

The EU relies heavily on:

• Articles 101 and 102 TFEU;
• merger control;
• the Digital Markets Act.

The United States relies principally on:

• Sherman Act §1;
• Sherman Act §2;
• Clayton Act §7;
• FTC Act §5.

The UK uses:

• Competition Act 1998;
• Enterprise Act 2002;
• Digital Markets, Competition and Consumers Act 2024.

India uses:

• Competition Act 2002;
• Competition Commission of India enforcement;
• merger-control provisions.

China uses:

• Anti-Monopoly Law;
• platform-specific regulatory rules;
• merger review and abuse-of-dominance provisions.

Thus, legal convergence is weaker than regulatory convergence.

13. From Consumer Welfare to Ecosystem Welfare

A significant theoretical development is the gradual expansion of the competition inquiry.

Traditional analysis often asks:

Will consumers pay higher prices?

Digital antitrust increasingly asks:

Will the platform's conduct reduce innovation, choice, privacy, interoperability, market access, or future competition?

This does not necessarily abandon consumer welfare. Instead, consumer welfare is increasingly interpreted through multiple competitive parameters.

14. Global Regulatory Cooperation

Digital markets are inherently cross-border.

A platform may:

• incorporate in one jurisdiction;
• process data in another;
• develop software in another;
• host infrastructure elsewhere; and
• serve consumers worldwide.

Therefore, competition authorities increasingly cooperate through:

• information sharing;
• parallel investigations;
• international competition networks;
• coordinated merger review;
• common economic methodologies;
• joint policy discussions; and
• convergence of remedies.

This produces regulatory spillovers: an important remedy imposed by one major jurisdiction may effectively alter a platform's global commercial architecture.

15. The "Brussels Effect" and Digital Antitrust

The EU has substantial influence because multinational digital companies may find it inefficient to operate entirely different technical systems for different jurisdictions.

Consequently, EU requirements concerning:

• interoperability;
• data access;
• app-store practices;
• self-preferencing;
• advertising transparency; and
• platform governance

can influence global corporate behaviour.

This phenomenon is often described as the Brussels Effect.

16. Emerging Convergence Around AI

The next stage of convergence concerns AI competition.

Authorities are increasingly examining:

Compute concentration

Whether access to GPUs, cloud infrastructure and specialised computing becomes concentrated.

Foundation models

Whether a small number of companies control foundational AI models.

Data advantages

Whether incumbent platforms possess datasets unavailable to competitors.

AI distribution

Whether dominant platforms use operating systems, browsers, search engines or cloud platforms to favour their own AI products.

AI partnerships

Whether exclusive or preferential arrangements between model developers and cloud providers foreclose competitors.

AI mergers

Whether acquisitions of AI start-ups eliminate future competitive constraints.

AI agents

Whether autonomous agents could coordinate prices, purchasing, advertising, or market allocation.

These issues are likely to become the next major source of international antitrust convergence.

17. Key Principles Emerging From Global Convergence

The global regulatory trend can be summarised through eight principles:

1. Platform power matters even where services are nominally free.
2. Data can constitute an important competitive asset.
3. Digital ecosystems should not always be analysed as isolated markets.
4. Self-preferencing can become an antitrust concern.
5. Interoperability and portability can promote contestability.
6. Digital acquisitions require attention to future competitive potential.
7. Algorithmic conduct requires adaptation of traditional cartel concepts.
8. Ex-ante regulation is increasingly supplementing traditional ex-post antitrust enforcement.

18. Critical Evaluation

Global convergence offers substantial advantages.

Advantages

Consistency: Multinational platforms receive more predictable regulatory expectations.

Effective enforcement: Authorities can address global digital businesses using comparable theories.

Reduced regulatory arbitrage: Firms have fewer opportunities to exploit jurisdictional differences.

Better remedies: Coordinated remedies can address cross-border technological systems.

Innovation protection: Intervention against gatekeeper conduct can preserve opportunities for smaller competitors.

Risks

However, excessive convergence can also create problems.

Regulatory overreach: Different markets may require different solutions.

Institutional duplication: Multiple authorities may impose overlapping remedies.

Conflicting standards: One jurisdiction may consider conduct pro-competitive while another considers it exclusionary.

Innovation costs: Excessive intervention can discourage investment in digital infrastructure.

Remedy fragmentation: Platforms may face incompatible interoperability, privacy and data-access obligations.

Therefore, the objective should be coordinated convergence rather than complete uniformity.

Conclusion

Global convergence of digital antitrust regimes represents a transition from traditional price-centred competition law toward regulation of digital power, ecosystems and infrastructure. The EU, United States, UK, China, India and other jurisdictions increasingly address common problems involving platform dominance, self-preferencing, app stores, data concentration, interoperability, algorithmic conduct and digital mergers.

The major cases—including Google Shopping, Google Android, Epic Games v Apple, Epic Games v Google, Qualcomm and Microsoft/Activision Blizzard—illustrate different stages of this development.

The most important point is that global digital antitrust is converging functionally rather than becoming legally identical. Authorities retain different statutory frameworks, standards of proof and institutional philosophies, but increasingly share a common concern: preventing powerful digital intermediaries from converting technological, data, network or ecosystem advantages into durable and unchallengeable market power.