Competition Law and Governance of Opportunity-Driven Markets

1. Introduction

Opportunity-driven markets are markets in which competitive advantage depends heavily on the ability of firms to identify, create, allocate, or capture new commercial opportunities. These opportunities may arise from data, algorithms, platforms, innovation, consumer behaviour, interoperability, network effects, emerging technologies, infrastructure access, or changing market conditions.

In traditional markets, competition is often analysed through price, output and market shares. In opportunity-driven markets, however, a firm may gain an advantage by controlling the gateway through which opportunities reach competitors, sellers, developers, advertisers or consumers.

Examples include:

• digital platforms deciding which sellers receive visibility;
• search engines determining which services receive prominent placement;
• app stores controlling access to consumers;
• marketplaces using seller data to compete against sellers;
• platforms using algorithms to allocate customers;
• dominant firms controlling interoperability or essential data;
• vertically integrated firms deciding which rivals receive access to commercially valuable opportunities.

Modern competition law therefore increasingly examines not merely whether a competitor can technically enter a market, but whether competitors have a genuine opportunity to compete on the merits.

2. Meaning of Opportunity-Driven Markets

An opportunity-driven market has several characteristic features.

A. Opportunity as a competitive input

Competition may depend upon access to:

• customers;
• data;
• search visibility;
• distribution channels;
• algorithms;
• infrastructure;
• interoperability;
• advertising inventory;
• payment systems;
• app stores;
• logistics networks.

Control over these inputs can give a dominant undertaking the ability to determine which competitors receive commercially meaningful opportunities.

B. Dynamic rather than static competition

Competition may occur through:

innovation → experimentation → consumer adoption → data accumulation → further innovation

A firm that obtains an early advantage may accumulate data, users and complementary services, making subsequent entry increasingly difficult.

C. Platform-mediated opportunity

Platforms frequently act simultaneously as:

1. infrastructure providers;
2. intermediaries;
3. rule-makers; and
4. competitors.

This creates a potential conflict when a platform determines the conditions under which its own competitors participate.

D. Algorithmic allocation

Algorithms may determine:

• search rankings;
• recommendations;
• advertising allocation;
• seller visibility;
• pricing;
• access to customers;
• app ranking;
• content distribution.

Consequently, competition law must examine not only the formal rules but also how opportunities are actually allocated by technological systems.

3. Competition-Law Framework

A. Abuse of Dominance

The central concern arises where a dominant undertaking uses control over one opportunity-generating environment to disadvantage competitors.

Relevant forms of conduct include:

• self-preferencing;
• discriminatory access;
• refusal of access;
• tying and bundling;
• exclusive dealing;
• loyalty rebates;
• discriminatory ranking;
• exploitation of data;
• interoperability restrictions;
• anti-steering restrictions.

Under Article 102 TFEU, for example, abuse can include conduct capable of restricting competition by excluding rivals from commercially important opportunities.

B. Essential-Facility Principles

Where a dominant undertaking controls infrastructure that competitors cannot reasonably reproduce, refusal or discriminatory conditions of access may raise competition concerns.

The analysis generally considers:

1. whether the facility is controlled by a dominant undertaking;
2. whether access is indispensable;
3. whether duplication is realistically possible;
4. whether refusal eliminates effective competition;
5. whether there is objective justification.

The opportunity may therefore lie not merely in a physical facility but in digital infrastructure, data or interoperability.

4. Self-Preferencing

Self-preferencing is particularly important in opportunity-driven markets.

It occurs where a platform gives preferential treatment to its own products or services compared with competing third-party offerings.

The classic example is the Google Shopping litigation. The European Commission found that Google had systematically favoured its own comparison-shopping service in its general search results, while rival comparison-shopping services were subject to algorithms that reduced their visibility.

The important competition-law concept is therefore:

Control over opportunity allocation + preferential treatment of the controller's own business = potential foreclosure problem.

5. Data as an Opportunity-Generating Asset

Data can create competitive opportunities because it can be used to:

• improve products;
• train algorithms;
• identify consumer preferences;
• target advertising;
• optimise prices;
• predict demand;
• personalise recommendations.

Large platforms can therefore benefit from a feedback loop:

More users → more data → better service → more users → greater competitive advantage.

Academic and policy literature has identified this positive-feedback mechanism as an important feature of digital competition.

Competition law may consequently examine whether a dominant undertaking's control of data creates an artificial barrier to competitors' ability to develop competing products.

6. Six Major Case Laws

Case 1 — Google Search (Shopping)

Google Search (Shopping), European Commission, Case AT.39740 (2017)

This is one of the most important authorities for opportunity-driven digital markets.

The Commission concluded that Google abused its dominant position in general search by giving preferential positioning and display to its own comparison-shopping service.

Competition issue

Google controlled a critical opportunity:

visibility before consumers searching for products.

Because search visibility could determine traffic and commercial success, discriminatory ranking could affect rivals' ability to compete.

Principle

A dominant platform may not necessarily be free to use its gateway position to systematically favour its own downstream service where such conduct restricts competition.

The case demonstrates that visibility itself can be a competitive opportunity.

Case 2 — Google Android

Google Android, European Commission, Case AT.40099 (2018)

The Commission examined Google's contractual arrangements concerning Android devices, including restrictions involving pre-installation and default placement of Google services.

The case concerned Google's ability to influence the competitive conditions under which competing search and other services reached users.

Competition significance

Default settings can create an enormous competitive advantage because consumers frequently use the service already presented to them.

The competitive opportunity therefore exists at the point of:

consumer choice architecture.

Principle

Competition law can examine contractual mechanisms that make it substantially more difficult for competing services to obtain user access.

Case 3 — Amazon Marketplace / Amazon Buy Box

European competition authorities have investigated Amazon's dual role as:

1. marketplace operator; and
2. seller of its own products.

The competition concern is particularly relevant where Amazon possesses extensive marketplace data while simultaneously competing with marketplace sellers.

The European Commission's digital-market analysis has identified Amazon self-preferencing as an important competition issue alongside Google Shopping.

Competition significance

Amazon can potentially observe:

• seller performance;
• prices;
• consumer behaviour;
• sales volumes;
• product demand.

The competition question is whether the platform can use its intermediary position to obtain advantages over businesses dependent upon the platform.

Principle

A platform's information advantage may become a competitive advantage when the platform simultaneously competes against businesses using its infrastructure.

Case 4 — Google AdSense

Google Search AdSense, European Commission, Case AT.40411 (2019)

The Commission found that Google's contractual restrictions concerning search advertising intermediaries restricted competition.

The case concerned contractual provisions that limited the ability of publishers to obtain advertising services from competing providers.

Competition significance

Advertising access represents a major commercial opportunity.

If a dominant intermediary controls access to advertisers or publishers, contractual restrictions can reduce competitors' opportunities to obtain scale.

Principle

Dominance can be abused through contractual restrictions that limit competitors' ability to access commercially significant relationships.

Case 5 — Apple App Store / Anti-Steering

The European Commission's DMA enforcement against Apple provides a contemporary example.

In April 2025, the Commission found Apple in breach of the DMA's anti-steering obligation and imposed a €500 million fine. The Commission stated that developers should be able to inform consumers about alternative offers outside the App Store and direct consumers toward those offers.

Competition significance

The opportunity at issue is:

the opportunity for developers to establish direct commercial relationships with consumers.

If a platform prevents developers from informing consumers about cheaper or alternative purchasing channels, competing distribution channels may struggle to develop.

Principle

Competition governance may protect the ability of market participants to reach consumers through alternative channels.

Case 6 — Meta / WhatsApp Data and Competition in India

The Indian competition-law framework provides an important example of opportunity-driven ecosystem competition.

In the Meta-WhatsApp proceedings, the Competition Commission of India considered whether the combination of WhatsApp user data with Meta's broader ecosystem could create barriers to competitors in online advertising and result in denial of market access. The subsequent appellate proceedings examined these issues under Sections 4(2)(c) and 4(2)(e) of the Competition Act, 2002.

Competition significance

The relevant opportunity is not simply access to WhatsApp users.

It is access to:

• commercially valuable behavioural information;
• targeted advertising opportunities;
• consumer profiles;
• scale economies in advertising.

Principle

Where dominance in one market supplies an important competitive advantage in another market, competition authorities may examine leveraging and ecosystem effects.

7. Additional Important Authorities

Microsoft Corp. v Commission

The Microsoft litigation demonstrates how restrictions on interoperability can affect competitors' ability to participate effectively in neighbouring markets.

Intel v Commission

The Intel litigation illustrates the importance of exclusionary strategies, conditional rebates and the relationship between dominant firms and competitors.

Bronner v Mediaprint

The case established important principles concerning refusal of access and the exceptional circumstances in which access to infrastructure may be required.

IMS Health v NDC Health

The case is significant for understanding intellectual property, indispensability and access to commercially important information infrastructure.

Slovak Telekom

The EU litigation illustrates how a vertically integrated incumbent can use control over infrastructure and access conditions to affect downstream competition.

8. Opportunity Allocation as a Competition-Law Problem

Opportunity-driven markets can be analysed through a simple model:

Control of infrastructure
↓
Control of access
↓
Control of visibility/data/customers
↓
Allocation of commercial opportunities
↓
Competitive advantage
↓
Potential foreclosure of rivals

This is particularly important for:

• search engines;
• app stores;
• e-commerce marketplaces;
• advertising exchanges;
• cloud computing;
• digital payments;
• social-media platforms;
• mobility platforms;
• food-delivery platforms;
• online travel agencies.

9. Network Effects and Opportunity Accumulation

Network effects can amplify opportunity advantages.

For example:

More users
→ more transactions
→ more data
→ better algorithms
→ better recommendations
→ more users.

This can produce a self-reinforcing competitive cycle.

Competition law therefore has to distinguish between:

Legitimate competitive success

A firm gains users because its product is better, cheaper or more innovative.

Potentially exclusionary advantage

A dominant firm uses control over an ecosystem to prevent competitors from accessing opportunities necessary to compete effectively.

That distinction is central.

10. Interoperability

Interoperability can determine whether competitors have meaningful opportunities to compete.

Examples include:

• operating-system interoperability;
• API access;
• messaging interoperability;
• payment interoperability;
• data portability;
• cloud interoperability.

The contemporary DMA framework specifically addresses interoperability and data portability for designated gatekeepers, reflecting the concern that third parties should be able to compete using technological opportunities that are otherwise controlled by the gatekeeper.

11. Algorithmic Opportunity Allocation

Algorithms can create competition concerns when they determine:

• which seller appears first;
• which product receives recommendations;
• which advertisement is displayed;
• which application receives prominence;
• which driver receives customers;
• which merchant receives traffic.

The legal question is not simply:

"Is the algorithm discriminatory?"

It is:

Does the algorithm materially alter the competitive opportunities available to rivals, and is that effect connected to exclusionary conduct by a dominant undertaking?

This requires examination of:

• algorithmic design;
• ranking criteria;
• data inputs;
• treatment of first-party services;
• treatment of third parties;
• changes in ranking;
• internal business incentives;
• actual or likely foreclosure effects.

12. Consumer Choice and Opportunity

Opportunity-driven competition also concerns consumer choice.

Competition can be weakened when consumers are technically able to choose but are systematically channelled toward one provider through:

• defaults;
• pre-installation;
• ranking;
• recommendation systems;
• dark patterns;
• tying;
• anti-steering restrictions.

The European Commission's recent DMA enforcement illustrates this broader approach. In 2026, the Commission found Google in breach concerning both self-preferencing in Google Search and restrictions on steering consumers toward alternative purchasing channels.

Thus:

Formal availability of alternatives does not necessarily mean effective competitive opportunity.

13. Governance of Opportunity-Driven Markets

Competition governance increasingly requires several complementary mechanisms.

A. Ex-post antitrust enforcement

Authorities can investigate:

• abuse of dominance;
• exclusionary agreements;
• discriminatory access;
• tying;
• self-preferencing;
• predatory conduct.

B. Ex-ante regulation

The Digital Markets Act represents a significant move toward predefined obligations for designated gatekeepers.

The EU currently designates major gatekeepers including Alphabet, Amazon, Apple, Booking, ByteDance, Meta and Microsoft for specified core platform services.

C. Transparency

Platforms may need to explain:

• ranking systems;
• access conditions;
• advertising rules;
• data practices;
• interoperability arrangements.

D. Data portability

Portability can reduce switching costs and facilitate entry.

E. Interoperability

Interoperability can prevent technological ecosystems from becoming closed competitive environments.

F. Merger control

Acquisitions of emerging competitors may be important because opportunity-driven markets can generate powerful incumbency advantages.

14. Competition Concerns in Opportunity-Driven Markets

15. Challenges for Competition Authorities

1. Measuring opportunity

Opportunity is often difficult to quantify.

A competitor may technically have access to a platform but receive only a tiny fraction of meaningful traffic.

2. Dynamic markets

Today's small entrant may become tomorrow's major competitor.

Traditional market-share analysis may therefore understate future competitive significance.

3. Algorithmic opacity

Authorities may not immediately understand how an algorithm affects competitive outcomes.

4. Multi-sided markets

A platform may serve:

• consumers;
• sellers;
• advertisers;
• developers;
• payment providers.

Conduct benefiting one side may harm another.

5. Data feedback loops

Large data advantages can reinforce market power even without conventional exclusionary contracts.

16. Relationship Between Innovation and Competition

Opportunity-driven markets should not be regulated in a manner that automatically treats every advantage as anti-competitive.

Competition law must distinguish between:

Innovation-generated advantage

and

artificially protected advantage.

For example, a superior algorithm may legitimately attract users. But using dominance to prevent competitors from accessing essential interfaces, customers or data may raise different concerns.

The central inquiry is therefore:

Did the undertaking win the opportunity through competition, or did it use control over the market to restrict competitors' ability to obtain comparable opportunities?

17. Emerging Application to AI Markets

The concept is particularly relevant to artificial intelligence.

AI competition may depend upon access to:

• training data;
• computing capacity;
• foundation models;
• cloud infrastructure;
• APIs;
• specialised chips;
• distribution platforms;
• user feedback;
• developer ecosystems.

A vertically integrated firm could potentially control several stages:

Cloud → compute → model → API → application → distribution → user data

This creates the possibility of vertical opportunity foreclosure.

Competition authorities may therefore need to investigate whether control at one layer is being used to restrict competitive opportunities at another.

18. Remedies

Possible remedies include:

Structural remedies

• divestiture;
• separation of business units.

Behavioural remedies

• non-discriminatory access;
• prohibition of self-preferencing;
• interoperability;
• data portability;
• fair ranking;
• transparent access conditions.

Contractual remedies

• removal of exclusivity;
• removal of restrictive MFNs;
• anti-steering provisions.

Technological remedies

• APIs;
• interoperability interfaces;
• data portability mechanisms;
• independent auditing of algorithms.

Procedural remedies

• monitoring trustees;
• compliance reports;
• periodic audits.

19. Key Doctrinal Principles

The principal lessons from the case law are:

1. Commercial opportunity can itself constitute an important competitive input.
2. Control over a platform does not automatically permit discriminatory treatment of downstream competitors.
3. Self-preferencing can become problematic where it uses dominance in one market to disadvantage rivals in another.
4. Data can create durable competitive advantages and entry barriers.
5. Interoperability can determine whether competition is practically possible.
6. Defaults and ranking systems can influence effective consumer choice.
7. Anti-steering restrictions can restrict alternative routes to consumers.
8. Dominance in one market can potentially be leveraged into adjacent markets.
9. Competition authorities increasingly consider ecosystem-wide effects.
10. Ex-ante digital regulation increasingly complements traditional abuse-of-dominance enforcement.

20. Conclusion

Opportunity-driven markets represent a shift from conventional competition based primarily on price and output toward competition based on access to opportunities.

The critical competitive resources may be visibility, data, customers, interoperability, infrastructure, algorithms, distribution and consumer attention.

The major cases—including Google Shopping, Google Android, Google AdSense, Amazon Marketplace-related proceedings, Apple App Store anti-steering and the Meta-WhatsApp proceedings in India—illustrate different ways in which control over an opportunity-generating ecosystem can affect competitive conditions.

The central competition-law principle can therefore be expressed as:

Competition law should preserve the conditions under which firms have a meaningful opportunity to compete on the merits, while distinguishing such opportunities from advantages legitimately obtained through superior innovation, efficiency and consumer demand.

This makes access, neutrality, interoperability, data governance, algorithmic accountability and fair opportunity allocation increasingly important components of modern competition-law governance.