Digital Infrastructure Inequality as a Competition Issue

1. Introduction

Digital infrastructure inequality refers to significant differences in access to essential digital infrastructure—such as broadband networks, cloud computing, data centres, mobile networks, internet exchange points, payment infrastructure, digital identity systems, application stores, APIs, and high-performance computing.

It becomes a competition-law issue when unequal infrastructure access is not merely the result of geography, investment or technical limitations, but is reinforced by the conduct of dominant firms or infrastructure owners. A vertically integrated infrastructure provider may use control over an essential input to disadvantage downstream competitors, raise rivals’ costs, restrict interoperability, discriminate in access, or extend market power from one digital market into another.

The issue is particularly important because modern competition increasingly depends upon access to infrastructure rather than simply access to conventional physical facilities.

2. Meaning of Digital Infrastructure Inequality

Digital infrastructure inequality can arise at several levels:

A. Network inequality

Some businesses may receive:

• high-speed broadband;
• reliable fibre connectivity;
• low-latency networks;
• 5G infrastructure;
• internet exchange access;

while competitors receive inferior connectivity.

B. Cloud-computing inequality

Large platforms may obtain:

• preferential cloud capacity;
• cheaper computing resources;
• priority access to GPUs;
• superior data-centre capacity;
• favourable network peering.

Smaller competitors may therefore face substantially higher marginal costs.

C. Data infrastructure inequality

A dominant platform may control:

• large datasets;
• APIs;
• data access interfaces;
• authentication systems;
• interoperability mechanisms.

Competitors unable to obtain comparable data access may be structurally disadvantaged.

D. Digital-payment infrastructure inequality

Control over payment rails, wallets, authentication or settlement infrastructure can permit a firm to disadvantage competing payment providers.

E. Platform infrastructure inequality

App stores, operating systems, digital advertising exchanges and identity systems can function as infrastructure for downstream businesses.

3. Why It Is a Competition Problem

Infrastructure inequality is not automatically unlawful.

A competition concern arises where there is a combination of:

Infrastructure control + market power + discriminatory/exclusionary conduct + competitive harm

For example:

Dominant infrastructure → restricted access → rival's costs increase → rival loses scale → downstream competition decreases → infrastructure owner's market power becomes stronger.

This creates a self-reinforcing infrastructure advantage.

4. Relevant Competition-Law Theories

A. Abuse of dominance

A dominant infrastructure operator may abuse its position through:

• refusal to supply;
• discriminatory access;
• excessive access prices;
• tying;
• bundling;
• self-preferencing;
• interoperability restrictions;
• technical degradation.

In EU competition law, Article 102 TFEU is particularly important.

In Germany, GWB §§19 and 19a can become relevant where a powerful digital undertaking controls infrastructure or ecosystem access.

5. Essential-Facilities Theory

One of the most important doctrines is the essential-facilities principle.

The basic question is:

Can a dominant infrastructure provider lawfully refuse competitors access to an infrastructure facility that they cannot reasonably reproduce?

The classical requirements generally involve:

1. control of the facility by a dominant undertaking;
2. inability or substantial difficulty of duplication;
3. necessity of access for effective competition;
4. possibility of eliminating or substantially reducing competition;
5. absence of objective justification.

Digital infrastructure complicates this doctrine because the facility may be:

• software-based;
• scalable;
• distributed;
• data-dependent;
• algorithmically controlled.

6. Network Effects and Infrastructure Inequality

Digital markets frequently exhibit network effects.

The more users a platform has:

more users → more data → better service → more users.

Infrastructure inequality can amplify this process:

superior infrastructure → better performance → greater adoption → more data → greater economies of scale → even better infrastructure.

This creates a digital infrastructure feedback loop.

Consequently, an initially modest infrastructure advantage can become a durable competitive barrier.

7. Barriers to Entry

Infrastructure inequality can create several entry barriers.

Capital barrier

New entrants may need enormous investment in:

• fibre;
• servers;
• data centres;
• cloud infrastructure;
• GPUs;
• cybersecurity.

Scale barrier

Incumbents may spread infrastructure costs across millions of users.

Data barrier

Established platforms may combine infrastructure control with accumulated data.

Interoperability barrier

A dominant operator may technically prevent competitors from integrating effectively.

Switching-cost barrier

Customers may be locked into infrastructure ecosystems.

8. Discriminatory Infrastructure Access

A particularly serious concern arises where infrastructure owners offer different conditions to similarly situated competitors.

For example:

The economic effect is often more important than the formal contractual difference.

9. Digital Infrastructure as an Essential Input

Modern digital markets increasingly depend upon upstream infrastructure.

Examples include:

• cloud computing;
• semiconductor supply;
• GPU access;
• operating systems;
• mobile networks;
• app stores;
• payment systems;
• digital identity;
• authentication;
• DNS infrastructure;
• data centres;
• content-delivery networks.

If a dominant firm controls one of these inputs, it can potentially leverage upstream power into downstream markets.

10. Six Important Case Laws

1. Commercial Solvents Corp. v Commission

Court: Court of Justice of the European Union

This is an important early authority concerning refusal to supply.

Commercial Solvents controlled an important upstream input and allegedly refused to supply a downstream competitor.

Principle

A dominant undertaking controlling an essential upstream input cannot necessarily terminate supply merely to eliminate competition in a downstream market.

Relevance to digital infrastructure

The principle translates naturally to:

Infrastructure control → refusal of access → downstream foreclosure.

A dominant cloud provider, network operator or digital infrastructure company may therefore face competition-law scrutiny if it uses control over an indispensable input to eliminate downstream rivals.

2. United Brands v Commission

Case: United Brands Company v Commission

The case is a foundational Article 102 authority concerning abuse of dominance and discriminatory conduct.

Principle

A dominant undertaking has a special responsibility not to impair genuine competition in the market.

The Court examined discriminatory treatment and the exercise of market power.

Digital relevance

Where a dominant digital infrastructure provider supplies competing downstream businesses, materially different access conditions can raise concerns where the differences have no legitimate justification.

Examples include:

• discriminatory network access;
• discriminatory API terms;
• different technical quality;
• discriminatory authentication;
• different cloud-service conditions.

3. Bronner v Mediaprint

Case: Oscar Bronner GmbH & Co. KG v Mediaprint Zeitungs- und Zeitschriftenverlag GmbH

This is one of the leading cases concerning refusal to provide access to infrastructure under Article 102.

Principle

The Court established a demanding test for treating an infrastructure as indispensable.

The facility must generally be indispensable, and there must be no realistic alternative capable of replacing it.

Digital relevance

This is particularly important for:

• cloud infrastructure;
• telecommunications networks;
• app distribution;
• payment systems;
• authentication infrastructure;
• data-access systems.

A digital infrastructure operator cannot automatically be required to share every facility merely because access would benefit competitors.

The indispensability requirement remains critical.

4. IMS Health v Commission

Case: IMS Health GmbH & Co. OHG v NDC Health GmbH & Co. KG

The case concerned access to a protected infrastructure involving pharmaceutical-sales data structures.

Principle

The Court developed the circumstances under which refusal to license intellectual property could amount to abuse of dominance.

The refusal becomes particularly problematic where:

1. access is indispensable;
2. refusal prevents the emergence of a new product or service;
3. refusal lacks justification;
4. competition is substantially excluded.

Digital relevance

The case is highly significant for digital infrastructure involving:

• proprietary datasets;
• APIs;
• software interfaces;
• data architectures;
• interoperability systems;
• digital standards.

It demonstrates that infrastructure-like intellectual property can acquire competition significance where exclusion prevents meaningful downstream innovation.

5. Microsoft Corp. v Commission

Case: Microsoft Corp. v Commission

Court: General Court of the European Union

This is one of the most important technology competition cases.

Microsoft was found to have abused its dominant position through conduct involving interoperability information and tying.

Principle

A dominant technology company may violate competition law where it restricts interoperability in a way that prevents competitors from competing effectively.

Digital-infrastructure significance

The case illustrates that interoperability itself can become a competitive infrastructure.

Infrastructure inequality may therefore arise when:

dominant platform → controls technical interface → competitors receive inferior interoperability → competing products become less viable.

This is directly relevant to modern:

• operating systems;
• cloud platforms;
• APIs;
• AI ecosystems;
• device ecosystems;
• enterprise software.

6. Slovak Telekom and Deutsche Telekom v Commission

Cases: Slovak Telekom v Commission and Deutsche Telekom v Commission

These cases concerned access to telecommunications infrastructure and margin-squeeze conduct.

Principle

A vertically integrated dominant operator can infringe competition law when the relationship between its wholesale and retail prices makes effective downstream competition difficult or impossible.

Digital-infrastructure significance

This is highly relevant to modern network infrastructure.

Suppose an infrastructure owner:

• controls wholesale network access;
• competes downstream;
• charges rivals high wholesale prices;
• simultaneously offers its own downstream services at advantageous prices.

The resulting margin squeeze can make efficient competitors unable to compete.

The same economic theory can apply to:

• broadband;
• cloud infrastructure;
• data-centre connectivity;
• payment infrastructure;
• digital advertising infrastructure.

11. Additional Important Authorities

7. Bronner and the Digital Essential-Facility Threshold

Although Bronner is already discussed above, its broader importance deserves emphasis.

Digital infrastructure claims must distinguish between:

"Access would make competition easier"

and

"Access is indispensable for competition."

Competition law generally requires the latter before imposing particularly strong access obligations.

8. Google Shopping

Case: Google Search (Shopping)

The European Commission and EU courts examined Google's treatment of competing comparison-shopping services.

Principle

A dominant digital platform can use control over a major digital gateway to disadvantage competing services.

Digital-infrastructure relevance

Search visibility can operate as digital infrastructure because access to users depends upon the platform's ranking and distribution architecture.

Infrastructure inequality can therefore arise without physical exclusion.

12. Infrastructure Inequality and Self-Preferencing

A dominant infrastructure provider may simultaneously operate downstream services.

For example:

Cloud provider → cloud infrastructure + AI service
App-store operator → app distribution + proprietary applications
Search engine → search infrastructure + proprietary vertical services
Payment platform → payment infrastructure + competing financial products.

The competition concern is strongest where the infrastructure provider gives its own downstream products:

• lower latency;
• better APIs;
• cheaper access;
• greater data availability;
• preferred ranking;
• superior interoperability.

This creates structural self-preferencing.

13. Infrastructure Inequality and Raising Rivals' Costs

One of the most important economic theories is raising rivals' costs.

A dominant infrastructure operator need not completely exclude a rival.

It can instead:

1. increase the rival's infrastructure costs;
2. reduce the rival's quality;
3. delay integration;
4. increase compliance requirements;
5. restrict technical functionality;
6. impose discriminatory access conditions.

If rivals remain technically present but become economically uncompetitive, the result can still be foreclosure.

14. Cloud Computing and GPU Infrastructure

The issue is becoming particularly important in AI markets.

Advanced AI development may depend upon access to:

• GPUs;
• TPUs;
• high-performance computing;
• cloud clusters;
• data centres;
• networking;
• specialised AI accelerators.

If a small number of infrastructure providers control these inputs, infrastructure inequality can become a barrier to AI-market entry.

Potential competition concerns include:

• exclusive cloud arrangements;
• preferential allocation of computing resources;
• discriminatory access to accelerators;
• cloud credits unavailable to rivals;
• tying AI models to particular cloud infrastructure;
• high switching costs.

15. Telecommunications Infrastructure

Telecommunications provides the clearest traditional example.

A network operator may control:

physical network → wholesale access → retail telecommunications.

If it discriminates against competing service providers, competition authorities may examine:

• refusal to supply;
• discriminatory pricing;
• margin squeeze;
• technical degradation;
• access delays;
• exclusivity.

The telecommunications cases provide an important foundation for analysing newer digital infrastructure.

16. Infrastructure Inequality and Geographic Competition

Digital infrastructure inequality can also have a geographical dimension.

For example:

• urban regions may have fibre networks;
• rural regions may depend on inferior connectivity;
• some jurisdictions may have multiple cloud providers;
• others may have only one dominant provider.

The competition question is whether such disparities:

1. arise naturally from investment conditions; or
2. are deliberately maintained or exploited by dominant firms.

Competition law generally does not require identical infrastructure everywhere.

However, strategic exclusion that prevents competitors from developing alternative infrastructure may raise concerns.

17. Infrastructure Sharing and Competition

Infrastructure sharing can sometimes improve competition.

Examples include:

• network sharing;
• neutral data centres;
• shared fibre;
• common payment infrastructure;
• interoperability standards;
• shared identity infrastructure.

However, infrastructure sharing itself may create competition risks if competitors use it to:

• exchange sensitive information;
• coordinate prices;
• divide markets;
• restrict innovation.

Therefore:

Infrastructure sharing can promote competition, but the governance architecture must prevent collusion.

18. Infrastructure Inequality and Small Businesses

SMEs can be disproportionately affected.

A dominant infrastructure provider may impose:

• high minimum volumes;
• expensive technical integration;
• complicated certification;
• expensive cloud migration;
• API fees;
• security compliance requirements.

Large firms can absorb these costs.

Small firms cannot.

Consequently, formally identical access conditions can produce substantively unequal competitive effects.

19. Infrastructure Inequality and Innovation

Competition law protects not only existing competitors but potentially the competitive process.

Infrastructure exclusion can reduce:

• innovation;
• experimentation;
• entry;
• alternative business models;
• technological diversity.

A startup may have a technically superior product but still fail because it cannot obtain:

affordable computing + data + distribution + interoperability.

The resulting problem is therefore not simply "market share"; it concerns innovation foreclosure.

20. Objective Justification

Infrastructure providers should not automatically be compelled to provide unrestricted access.

Legitimate reasons for restricting access may include:

• cybersecurity;
• network capacity;
• privacy;
• technical incompatibility;
• safety;
• intellectual-property protection;
• legitimate investment incentives;
• system integrity.

The competition-law inquiry therefore asks whether the restriction is:

1. genuinely necessary;
2. proportionate;
3. applied consistently;
4. based on objective criteria;
5. not a disguised method of excluding competitors.

21. Remedies

Competition authorities can potentially address infrastructure inequality through several remedies.

A. Access obligations

Require reasonable access to infrastructure.

B. Non-discrimination

Require equivalent treatment of similarly situated competitors.

C. Interoperability

Mandate technical compatibility.

D. Data portability/access

Permit competitors to obtain necessary data under appropriate safeguards.

E. Structural separation

In extreme circumstances, separate infrastructure operations from downstream competitive activities.

F. Price regulation

Where appropriate, impose cost-oriented or economically justified access conditions.

G. Transparency

Require disclosure of access criteria and technical standards.

H. Switching remedies

Reduce contractual and technical lock-in.

22. German Competition-Law Perspective

Germany is particularly important because the GWB has been adapted to address powerful digital ecosystems.

Section 19 addresses abusive conduct by dominant undertakings, while §19a GWB provides a special framework for undertakings of paramount significance across markets.

Digital infrastructure inequality may become particularly significant where a large platform:

• controls an ecosystem;
• operates several interconnected markets;
• controls critical data;
• provides infrastructure to competitors;
• can leverage power between markets.

The German approach is therefore capable of addressing structural digital power before traditional price-based theories become fully adequate.

23. Economic Assessment

Authorities should examine:

Market definition

What is the relevant infrastructure market?

Market power

Does the provider possess substantial market power?

Dependence

How dependent are downstream businesses?

Alternatives

Can competitors reasonably reproduce the infrastructure?

Access conditions

Are terms discriminatory?

Cost effects

Does the conduct raise rivals' costs?

Foreclosure

Are competitors being excluded or substantially weakened?

Consumer effects

Are prices, quality, choice or innovation harmed?

Dynamic effects

Will infrastructure control reinforce long-term dominance?

24. A Useful Analytical Framework

The issue can be analysed through the following sequence:

Step 1 — Identify infrastructure

↓

Step 2 — Identify the infrastructure owner

↓

Step 3 — Determine market power

↓

Step 4 — Determine competitor dependence

↓

Step 5 — Identify access restriction or discrimination

↓

Step 6 — Test indispensability

↓

Step 7 — Analyse foreclosure / raising rivals' costs

↓

Step 8 — Examine objective justification

↓

Step 9 — Assess consumer and innovation effects

↓

Step 10 — Select proportionate remedy

25. Key Competition-Law Issues

26. Conclusion

Digital infrastructure inequality is increasingly a competition-law issue because control over infrastructure can determine who is capable of competing in downstream digital markets.

The central distinction is between inequality produced by legitimate economic or technical conditions and inequality deliberately created or exploited by a firm possessing substantial market power.

The principles developed in Commercial Solvents, United Brands, Bronner, IMS Health, Microsoft, Slovak Telekom/Deutsche Telekom and Google Shopping demonstrate that competition law can address several forms of infrastructure-based exclusion.

The most important modern concern is the emergence of a digital infrastructure feedback loop:

Infrastructure control → preferential access → lower costs/better performance → greater market share → more data and investment → stronger infrastructure → increased dependence of rivals.

When this cycle becomes sufficiently entrenched, infrastructure is no longer merely a technical input. It becomes a strategic source of market power.