Introduction

Ecosystem resilience governance refers to the legal, institutional, and technical mechanisms designed to ensure that a digital or economic ecosystem can withstand disruptions, adapt to changing conditions, and continue functioning without becoming excessively dependent on one dominant undertaking, infrastructure provider, technology, or data source.

From a competition-law perspective, resilience is important because an ecosystem may appear efficient while simultaneously developing structural vulnerabilities. A dominant platform may control access to users, data, application programming interfaces (APIs), cloud infrastructure, payment systems, operating systems, logistics, or interoperability standards. If competitors and business users become dependent on that infrastructure, the ecosystem may become difficult to contest.

Competition law therefore intersects with resilience governance through questions such as:

• Can competitors switch to alternative infrastructures?
• Can users port their data and relationships?
• Is interoperability available on reasonable terms?
• Does a dominant undertaking control a critical bottleneck?
• Are exclusive arrangements making the ecosystem fragile?
• Does vertical integration allow the ecosystem owner to discriminate against rivals?
• Can a regulator require access, interoperability, or structural separation?
• Do mergers increase systemic dependency?
• Can resilience justifications be used to defend otherwise restrictive conduct?

The objective is not simply to maximize redundancy. Excessive duplication can increase costs and reduce efficiency. Competition law instead examines whether resilience-enhancing measures preserve contestability, choice, innovation, interoperability, and alternative sources of supply.

I. Meaning of Ecosystem Resilience Governance

1. Ecosystem

An ecosystem consists of interconnected participants and complementary products or services.

Examples include:

• mobile operating systems;
• app stores;
• cloud-computing ecosystems;
• digital advertising ecosystems;
• e-commerce marketplaces;
• payment ecosystems;
• smart-home platforms;
• EV charging networks;
• healthcare technology ecosystems;
• financial-data ecosystems.

A platform may occupy a central position while relying upon numerous complementary firms.

2. Resilience

Resilience is the capacity of an ecosystem to:

1. absorb disruption;
2. continue providing essential services;
3. switch suppliers or technologies;
4. recover from failures;
5. accommodate innovation;
6. prevent a single point of failure;
7. preserve competitive alternatives.

3. Governance framework

Governance includes:

• access rules;
• interoperability obligations;
• data portability;
• switching mechanisms;
• technical standards;
• cybersecurity requirements;
• procurement rules;
• continuity obligations;
• transparency requirements;
• non-discrimination rules;
• merger controls;
• regulatory monitoring.

The competition-law question is whether these arrangements preserve or undermine competitive structure.

II. Relationship Between Competition and Resilience

Competition itself can create resilience.

A market with several independent suppliers may be more resilient than one dominated by a single supplier because customers can switch when:

• prices increase;
• quality deteriorates;
• technology fails;
• supply is interrupted;
• innovation occurs elsewhere.

Thus:

Competition can function as a form of structural resilience.

Conversely, excessive concentration can produce a single-point-of-failure problem.

For example, if one cloud provider becomes indispensable to an entire digital ecosystem, an outage or discriminatory access decision can affect thousands of downstream firms.

III. Major Competition-Law Issues

1. Dominance over critical ecosystem infrastructure

A dominant undertaking may control infrastructure that competitors cannot easily reproduce.

Relevant competition-law questions include:

• Is the infrastructure indispensable?
• Are alternatives realistically available?
• Is access technically feasible?
• Are competitors dependent upon the infrastructure?
• Does refusal of access eliminate effective competition?

This can bring the conduct within the principles associated with the essential-facilities doctrine and refusal-to-deal cases.

IV. Interoperability as a Resilience Mechanism

Interoperability permits separate systems to communicate.

Examples:

• messaging interoperability;
• payment interoperability;
• cloud portability;
• API access;
• operating-system compatibility;
• smart-device interoperability.

From a competition perspective, interoperability can reduce:

• switching costs;
• network-effect barriers;
• ecosystem lock-in;
• foreclosure;
• dependence upon proprietary standards.

However, compulsory interoperability can also create legitimate concerns involving:

• cybersecurity;
• intellectual property;
• privacy;
• technical integrity;
• investment incentives.

Therefore, competition authorities generally need to distinguish between legitimate technical restrictions and restrictions that reinforce market power.

V. Data Portability and Ecosystem Resilience

Data portability can make an ecosystem more contestable.

If consumers cannot transfer:

• transaction histories;
• social graphs;
• ratings;
• playlists;
• business information;
• financial information;
• usage histories,

switching becomes costly.

Data portability can therefore function as a resilience mechanism by reducing dependency upon a single ecosystem.

VI. Switching Costs and Lock-In

An ecosystem becomes less resilient when users face substantial costs in leaving it.

Lock-in can arise through:

• proprietary formats;
• contractual restrictions;
• technical incompatibility;
• loss of accumulated data;
• loss of reputation;
• loss of network connections;
• loyalty programs;
• bundled services;
• default settings.

Competition authorities may investigate whether such mechanisms constitute exclusionary conduct when implemented by a dominant undertaking.

VII. Network Effects and Resilience

Network effects can reinforce ecosystem concentration.

The more users a platform has, the more attractive it may become.

This creates a feedback loop:

More users → more complementors → greater functionality → more users → greater data → better service → stronger network effects

The same mechanism can produce fragility:

Greater concentration → greater dependency → fewer alternatives → higher switching costs → greater systemic vulnerability

Thus, competition law may examine ecosystem concentration rather than merely individual product market shares.

VIII. Vertical Integration

A platform controlling several levels of an ecosystem can potentially:

• favor its downstream products;
• deny access to rivals;
• degrade interoperability;
• impose discriminatory terms;
• obtain commercially sensitive information;
• bundle complementary products.

Vertical integration is not automatically unlawful.

The central question is whether integration is being used to foreclose competing firms or reinforce durable market power.

IX. Exclusive Dealing and Ecosystem Resilience

Exclusive agreements can reduce the number of alternative suppliers or distribution channels.

For example:

Platform → exclusive infrastructure provider → downstream businesses

If competitors cannot obtain comparable distribution, the ecosystem may become increasingly dependent upon the incumbent.

Competition analysis therefore considers:

• duration;
• market coverage;
• foreclosure percentage;
• availability of alternatives;
• switching possibilities;
• network effects;
• entry barriers.

X. Self-Preferencing

A platform may simultaneously operate:

1. the ecosystem; and
2. a competing service within that ecosystem.

It may then give preferential treatment to its own service.

Examples include:

• ranking its own products first;
• preferential API access;
• favorable search placement;
• preferential app-store treatment;
• preferential data access.

Self-preferencing can undermine ecosystem resilience when independent participants cannot compete on equal terms.

XI. Ecosystem Governance and Merger Control

Mergers can alter ecosystem resilience even where traditional market-share analysis does not fully capture the risk.

Competition authorities may consider whether a transaction:

• removes an emerging competitor;
• increases control over critical data;
• consolidates complementary infrastructure;
• strengthens network effects;
• increases switching costs;
• enables foreclosure;
• creates a critical bottleneck.

This is particularly important in digital markets where a relatively small current competitor may have substantial future competitive significance.

XII. Six Major Case Laws

1. United States v. Microsoft Corp. — 253 F.3d 34 (D.C. Cir. 2001)

Facts

Microsoft possessed substantial power in the market for Intel-compatible PC operating systems. The case concerned Microsoft's conduct toward competing browsers and technologies.

Competition principle

The court examined Microsoft's use of its operating-system position to restrict competitive threats.

Relevance to ecosystem resilience

The case demonstrates how control of a foundational technological layer can influence competition throughout an ecosystem.

The operating system functioned as a critical platform connecting:

• hardware;
• applications;
• developers;
• users;
• complementary technologies.

Resilience lesson

An ecosystem becomes less contestable when the infrastructure owner can use control at one layer to disadvantage alternatives at another.

2. United Brands v Commission — Case 27/76

Facts

The European Commission found United Brands dominant in the relevant banana market and examined several forms of conduct involving customers and distributors.

Competition principle

The case is a foundational authority concerning:

• dominance;
• dependence;
• abusive conduct;
• barriers to alternative supply.

Relevance to resilience

United Brands demonstrates that competition analysis can consider the economic dependency of trading partners and the ability of a dominant undertaking to control important commercial relationships.

Resilience lesson

Where downstream participants become excessively dependent upon one supplier, the loss of competitive alternatives can increase ecosystem fragility.

3. Commercial Solvents v Commission — Joined Cases 6/73 and 7/73

Facts

Commercial Solvents controlled an important upstream input and was accused of using that position to disadvantage downstream competitors.

Competition principle

The European Court recognized that a dominant undertaking operating at an upstream level can violate competition law by using its position to restrict competition downstream.

Relevance to resilience

The case illustrates the importance of vertical ecosystem dependencies.

An upstream bottleneck can affect the viability of downstream competitors.

Resilience lesson

Competition can be weakened where one undertaking controls an indispensable input and simultaneously competes with firms dependent upon that input.

4. Bronner v Mediaprint — Case C-7/97

Facts

Bronner sought access to Mediaprint's newspaper-delivery system.

Competition principle

The Court established demanding conditions for requiring a dominant undertaking to provide access to infrastructure under Article 102 TFEU.

The relevant considerations included whether:

• the facility was indispensable;
• duplication was practically or economically impossible;
• refusal would eliminate effective competition;
• access could be required without undermining legitimate business interests.

Relevance to resilience governance

This is particularly important for infrastructure resilience.

Not every important infrastructure must automatically be opened to competitors.

Resilience lesson

Competition law must balance:

infrastructure access + contestability

against

investment incentives + legitimate property rights.

5. IMS Health v Commission — Case C-418/01

Facts

IMS Health controlled a data structure used by pharmaceutical companies. Competitors sought access to the structure.

Competition principle

The case developed the conditions relevant to compulsory licensing/access involving intellectual property and indispensable inputs.

Relevance to ecosystem resilience

Standardized data architectures can become essential components of an ecosystem.

Where market participants become dependent upon a proprietary information structure, access restrictions can create significant entry barriers.

Resilience lesson

Interoperability and access obligations may become relevant where proprietary infrastructure prevents effective competition.

6. Google Shopping — Google Search (Shopping), Commission Decision AT.39740

Facts

The European Commission found that Google had abused its dominant position in general search by systematically giving prominent placement to its own comparison-shopping service while demoting competing comparison-shopping services.

Competition principle

The case concerns:

• dominance;
• self-preferencing;
• search ranking;
• platform neutrality;
• foreclosure of competing services.

Relevance to ecosystem resilience

Search infrastructure can act as a gateway to multiple markets.

If an ecosystem operator systematically advantages its own downstream service, independent participants may lose access to users.

Resilience lesson

A resilient ecosystem requires meaningful opportunities for independent complementary services to compete for users.

XIII. Additional Important Case Laws

7. Google Android — Commission Decision AT.40099

The European Commission examined Google's contractual practices involving Android devices, including restrictions concerning search and browser distribution.

Resilience relevance

The case illustrates how control over an operating-system ecosystem can influence:

• application distribution;
• search competition;
• browser competition;
• default settings;
• market entry.

8. Apple — App Store practices and European competition enforcement

Competition authorities have examined Apple's control over app distribution and payment arrangements.

Resilience relevance

App-store governance demonstrates the significance of:

• access conditions;
• payment infrastructure;
• interoperability;
• alternative distribution;
• platform neutrality.

The broader lesson is that an ecosystem owner can exercise substantial competitive influence through the rules governing access to its infrastructure.

9. Slovak Telekom — Joined Cases C-165/19 P and C-166/19 P

The litigation concerned access to telecommunications infrastructure and exclusionary conduct.

Resilience relevance

Telecommunications networks are classic examples of infrastructure whose availability can affect downstream competition.

The case illustrates the importance of distinguishing legitimate infrastructure management from exclusionary use of dominant infrastructure.

10. Deutsche Telekom v Commission — Case C-280/08 P

The case concerned margin squeeze in telecommunications markets.

Resilience relevance

A vertically integrated network operator can potentially disadvantage downstream competitors through the relationship between wholesale and retail prices.

The principle is relevant to infrastructure ecosystems where competitors depend on access to an upstream network.

XIV. Governance Framework for Ecosystem Resilience

A comprehensive competition-sensitive framework can be divided into eight layers.

Layer 1 — Structural monitoring

Regulators should monitor:

• market concentration;
• network effects;
• ecosystem dependency;
• critical infrastructure;
• vertical integration;
• switching costs.

Layer 2 — Access governance

Rules may address:

• reasonable access;
• non-discrimination;
• transparent eligibility;
• technical access standards;
• reasonable pricing.

Layer 3 — Interoperability

Governance should consider:

• common standards;
• APIs;
• technical compatibility;
• messaging interoperability;
• data exchange.

Layer 4 — Portability

Users and businesses should, where appropriate, be able to transfer:

• data;
• accounts;
• business information;
• reputation;
• transactional histories.

Layer 5 — Anti-foreclosure safeguards

Authorities should examine:

• exclusivity;
• tying;
• bundling;
• self-preferencing;
• discriminatory access;
• predatory conduct.

Layer 6 — Merger resilience

Merger review should consider whether acquisitions:

• eliminate emerging competitors;
• consolidate infrastructure;
• increase data concentration;
• strengthen ecosystem lock-in;
• create new bottlenecks.

Layer 7 — Crisis governance

Resilience planning should establish:

• alternative suppliers;
• continuity mechanisms;
• disaster-recovery arrangements;
• emergency access;
• technical redundancy.

Layer 8 — Enforcement and remedies

Potential remedies include:

• behavioral commitments;
• access obligations;
• interoperability;
• data portability;
• non-discrimination requirements;
• contractual modifications;
• structural remedies in exceptional circumstances.

XV. Competition Risks Created by Resilience Regulation

Resilience regulation itself can create competition problems.

1. Standardization

Mandatory standards can facilitate interoperability but may also:

• exclude alternative technologies;
• favor incumbents;
• facilitate coordination.

2. Information sharing

Sharing information can improve resilience but excessive exchange of competitively sensitive information may facilitate:

• cartel coordination;
• price signaling;
• market allocation;
• algorithmic coordination.

3. Joint procurement

Collective purchasing can improve supply security but may create buyer power or exclusionary effects.

4. Industry coordination

Emergency cooperation may be legitimate during crises but should be:

• necessary;
• proportionate;
• time-limited;
• transparent.

5. Regulatory capture

Large incumbents may influence technical standards so that purported resilience requirements create barriers to entry.

XVI. Resilience and the Essential-Facility Doctrine

The relationship can be summarized as follows:

Critical infrastructure

↓

High dependency

↓

Few alternatives

↓

High switching costs

↓

Potential bottleneck

↓

Possible competition concern

But a critical facility is not automatically an essential facility in competition law.

The legal threshold generally requires careful consideration of:

• indispensability;
• elimination of effective competition;
• feasibility of duplication;
• objective justification;
• proportionality.

This is particularly important after Bronner and IMS Health.

XVII. Ecosystem Resilience and Digital Markets

Digital ecosystems create special resilience challenges because of:

Network effects

Users attract users.

Data advantages

More activity can generate more data.

Economies of scale

Large platforms can spread infrastructure costs across enormous user bases.

Switching costs

Users may lose accumulated information or relationships when leaving.

Multi-sidedness

A platform simultaneously connects several groups.

Ecosystem expansion

A firm dominant in one market may leverage its position into adjacent markets.

These characteristics can produce a self-reinforcing ecosystem.

XVIII. Competition-Law Assessment Framework

A regulator assessing ecosystem resilience can use the following sequence:

Step 1 — Identify the ecosystem

Determine:

• platform;
• infrastructure;
• complementary markets;
• users;
• suppliers;
• competitors.

Step 2 — Identify critical dependencies

Ask:

• Who depends upon whom?
• Is there an alternative?
• What is the switching cost?

Step 3 — Assess market power

Consider:

• market share;
• barriers to entry;
• network effects;
• data advantages;
• vertical integration;
• user dependency.

Step 4 — Identify conduct

Examine:

• refusal to deal;
• discriminatory access;
• tying;
• bundling;
• exclusivity;
• self-preferencing;
• interoperability restrictions.

Step 5 — Test competitive effects

Determine whether the conduct:

• forecloses rivals;
• raises entry barriers;
• increases switching costs;
• reduces innovation;
• reduces consumer choice;
• increases ecosystem dependency.

Step 6 — Consider objective justification

Potential justifications include:

• cybersecurity;
• privacy;
• technical integrity;
• safety;
• fraud prevention;
• legitimate intellectual-property protection.

Step 7 — Select proportionate remedies

Possible solutions:

Access → interoperability → portability → non-discrimination → behavioral commitments → structural intervention

The remedy should correspond to the identified competitive harm.

XIX. Conceptual Flowchart

Ecosystem formation

↓

Network effects + economies of scale

↓

Increasing concentration

↓

Dependency on ecosystem operator

↓

Switching costs / interoperability barriers

↓

Potential bottleneck

↓

Dominance assessment

↓

Conduct assessment

→ Refusal to access
→ Self-preferencing
→ Exclusivity
→ Tying/bundling
→ Data restrictions
→ Interoperability restrictions

↓

Effects on competition

→ Foreclosure
→ Entry barriers
→ Reduced innovation
→ Reduced choice
→ Increased dependency

↓

Resilience-oriented remedy

→ Portability
→ Interoperability
→ Access
→ Non-discrimination
→ Monitoring
→ Structural remedy where justified

XX. Key Principles Emerging From the Case Law

XXI. Conclusion

Ecosystem resilience governance and competition law are closely connected but are not identical concepts. Resilience policy seeks continuity, adaptability, and resistance to disruption, whereas competition law primarily protects the competitive process.

Their intersection becomes particularly significant where an undertaking controls a critical digital or economic ecosystem.

The principal competition-law concerns are:

1. excessive ecosystem concentration;
2. critical infrastructure dependency;
3. refusal of access;
4. interoperability restrictions;
5. data lock-in;
6. high switching costs;
7. self-preferencing;
8. exclusive dealing;
9. vertical foreclosure;
10. ecosystem-enhancing mergers that eliminate alternative sources of competition.

The cases of Microsoft, United Brands, Commercial Solvents, Bronner, IMS Health, Google Shopping, Google Android, Slovak Telekom, and Deutsche Telekom demonstrate different aspects of the broader principle: control over an important layer of an ecosystem can have competitive consequences beyond the immediate product or service controlled by the undertaking.