Competition Law and Strategic Market Cartography and Antitrust

Introduction

Strategic market cartography refers to the systematic mapping of a market's competitive structure—competitors, customers, suppliers, distribution channels, geographic territories, technologies, pricing relationships, market shares, switching patterns, entry barriers, and strategic dependencies.

In competition law, market cartography is important because antitrust analysis rarely examines a firm's conduct in isolation. Authorities must understand where competition takes place, who competes with whom, what constraints exist, and how market power is distributed.

Strategic market mapping can therefore assist in:

1. Defining the relevant product and geographic market.
2. Identifying actual and potential competitors.
3. Measuring market concentration.
4. Detecting dominant positions.
5. Identifying exclusionary strategies.
6. Detecting cartels and coordinated conduct.
7. Assessing mergers and acquisitions.
8. Identifying vertical restraints.
9. Understanding digital-platform ecosystems.
10. Designing appropriate competition remedies.

The important antitrust distinction is that market intelligence itself is generally legitimate, whereas using market information to coordinate competitive conduct, exclude rivals, or facilitate collusion may create competition-law liability.

1. Meaning of Strategic Market Cartography

Strategic market cartography can be understood as the legal-economic mapping of competitive relationships within a market.

A market map may contain:

• suppliers;
• manufacturers;
• distributors;
• retailers;
• customers;
• competitors;
• potential entrants;
• substitute products;
• complementary products;
• technology providers;
• infrastructure operators;
• platforms and intermediaries;
• geographic territories;
• pricing relationships;
• ownership links;
• contractual dependencies;
• data flows; and
• switching relationships.

Example

Suppose five companies operate electric-vehicle charging networks.

A conventional market analysis might ask:

What is the market share of each charging-network operator?

A strategic market map asks additional questions:

• Who owns the charging infrastructure?
• Which automobile manufacturers are vertically integrated?
• Which charging operators have exclusive agreements?
• Can drivers switch networks?
• Are payment systems interoperable?
• Does one operator control strategically located charging stations?
• Does an application give preferential visibility to affiliated chargers?
• Can competitors access essential charging data?
• Are charging networks geographically fragmented?

The latter approach gives a more complete picture of competitive constraints.

2. Strategic Market Cartography and Relevant-Market Definition

Market definition is one of the central functions of antitrust law.

Authorities commonly examine:

A. Product market

Which products or services constrain one another?

Relevant factors include:

• substitutability;
• consumer preferences;
• functionality;
• price;
• quality;
• innovation;
• switching costs;
• technological characteristics.

B. Geographic market

The authority determines the geographic area in which competitive conditions are sufficiently homogeneous.

It may involve:

• local markets;
• national markets;
• regional markets;
• international markets;
• digital markets.

C. Temporal dimension

Some markets can also have an important time component.

Examples include:

• electricity;
• airline capacity;
• hotel rooms;
• seasonal agricultural products;
• telecommunications capacity.

Strategic market cartography therefore provides the factual infrastructure for market definition.

3. Market Cartography and Market Power

Market mapping helps determine whether a firm possesses substantial market power.

Authorities may examine:

Market share alone does not necessarily establish dominance.

A firm with a large market share may face substantial competitive constraints, while a smaller firm may possess significant power where entry barriers and network effects are strong.

4. Strategic Market Cartography and Cartels

Market mapping becomes particularly sensitive when competing firms exchange commercially sensitive information.

Information concerning:

• future prices;
• production quantities;
• customer allocation;
• strategic expansion;
• capacity;
• costs;
• discounts;
• future business strategies

can facilitate coordination.

Important distinction

Lawful market intelligence

"What are the publicly observable market trends?"

is fundamentally different from:

Potentially problematic competitor intelligence

"What will our competitors charge next month, which customers will they target, and what quantities will they produce?"

The second category can reduce strategic uncertainty between competitors.

This is particularly important because competition law can condemn not only an explicit written cartel but also mechanisms that facilitate coordinated behaviour.

5. Information Exchange as a Competition Concern

Strategic market cartography can create antitrust risks when a firm obtains competitively sensitive information through:

• trade associations;
• consultants;
• data brokers;
• algorithms;
• common suppliers;
• common distributors;
• industry platforms;
• benchmarking services;
• digital intermediaries.

The legal question is not merely:

Was information exchanged?

It is:

Did the information exchange reduce strategic uncertainty or facilitate anticompetitive coordination?

Relevant characteristics include:

• whether information is public;
• whether it is aggregated;
• whether it is historical;
• whether it is individualised;
• whether it concerns future conduct;
• frequency of exchange;
• market concentration;
• transparency of the market;
• identity of information recipients.

6. Strategic Market Cartography in Digital Markets

Digital markets make market mapping considerably more complicated.

A digital platform may simultaneously operate as:

• marketplace;
• search engine;
• payment intermediary;
• advertising platform;
• data intermediary;
• logistics provider;
• cloud service;
• application ecosystem.

Consequently, a simple product-market map may fail to capture the platform's actual competitive position.

Relevant dimensions

Data

↓

Users

↓

Network effects

↓

Advertisers / sellers

↓

Revenue

↓

Investment in platform

↓

Greater user attraction

This feedback loop can strengthen market power.

Digital cartography therefore examines ecosystem relationships, rather than only individual products.

7. Strategic Market Cartography and Algorithmic Competition

Algorithms can create new forms of competition-law risk.

Suppose several competing firms use the same pricing algorithm.

Even if no employee explicitly communicates with competitors, the algorithm could:

• observe competitors' prices;
• predict their responses;
• adjust prices automatically;
• stabilise market prices.

This raises difficult questions concerning:

• concerted practices;
• tacit coordination;
• hub-and-spoke arrangements;
• algorithmic facilitation;
• information exchange;
• intermediary liability.

Market cartography is useful because it can identify whether competitors are connected through a common technological intermediary.

8. Strategic Market Cartography and Mergers

Market mapping is particularly important in merger control.

Authorities may map:

Firm A → Firm B → suppliers → customers → competitors → technologies → geographic markets

to identify:

• horizontal overlaps;
• vertical relationships;
• conglomerate relationships;
• potential competition;
• innovation competition;
• access dependencies;
• foreclosure risks.

Example

If Company A manufactures a critical component and Company B operates a downstream platform, their merger may not merely eliminate one competitor.

It may give the combined firm the ability to:

1. restrict component access;
2. raise rivals' costs;
3. discriminate against competing platforms;
4. bundle products;
5. use downstream data to strengthen upstream power.

Thus, strategic cartography can reveal competitive effects that ordinary market-share analysis may miss.

9. Strategic Market Cartography and Vertical Restraints

Market mapping can also reveal relationships between firms operating at different levels of the supply chain.

Examples include:

• exclusive dealing;
• resale-price maintenance;
• tying;
• bundling;
• territorial restrictions;
• customer allocation;
• loyalty rebates;
• refusal to supply.

The competitive assessment depends heavily upon the structure of the relevant market.

For example, an exclusive-distribution agreement may have very different consequences in:

• a market with ten strong distributors; and
• a market where one distributor provides access to virtually all customers.

Market cartography therefore provides the factual basis for assessing foreclosure.

10. Strategic Market Cartography and Essential Facilities

Mapping infrastructure is particularly important where a firm controls a facility that competitors require.

Potential examples include:

• electricity grids;
• telecommunications infrastructure;
• payment systems;
• ports;
• railway infrastructure;
• digital app stores;
• cloud infrastructure;
• data-access systems.

The authority may ask:

1. Who controls the facility?
2. Which competitors depend upon it?
3. Are alternatives available?
4. What are the switching costs?
5. Can duplication reasonably occur?
6. Does the owner discriminate between users?
7. Is access technically or economically feasible?

This transforms market cartography into a tool for analysing access-based market power.

11. Six Major Case Laws

1. United Brands v Commission

United Brands Company and United Brands Continentaal BV v Commission, Case 27/76 (1978)

This is a foundational European Union case on market definition and dominance.

The European Court of Justice examined the banana market and considered whether bananas constituted a distinct relevant product market.

The Court examined characteristics such as:

• physical characteristics;
• degree of substitutability;
• consumer preferences;
• competitive conditions.

Importance for market cartography

United Brands demonstrates that market boundaries cannot simply be determined from a company's internal description of its business.

The authority must map actual competitive constraints.

Principle

A relevant market must be identified by examining products that are sufficiently interchangeable or substitutable from the consumer's perspective.

2. Hoffmann-La Roche v Commission

Hoffmann-La Roche & Co. AG v Commission, Case 85/76 (1979)

The case concerned the pharmaceutical market and the concept of a dominant position.

The Court described dominance in terms of economic strength enabling an undertaking to behave to an appreciable extent independently of competitors, customers and consumers.

Importance

The case demonstrates that strategic market cartography must go beyond market share.

An authority should examine:

• competitor strength;
• customer dependence;
• barriers to entry;
• distribution structure;
• economic resources.

Principle

Market power is a structural concept involving the firm's ability to act independently of competitive constraints.

3. Airtours v Commission

Airtours plc v Commission, Case T-342/99 (2002)

The General Court considered the concept of collective dominance in merger control.

The case is important because it examined whether market conditions could allow firms to coordinate their behaviour without an explicit cartel.

Cartographic significance

A market map must identify:

• number of competitors;
• market transparency;
• retaliation mechanisms;
• structural incentives;
• ability to detect deviations.

Principle

Market structure can be relevant to determining whether firms have the conditions necessary for coordinated behaviour.

4. T-Mobile Netherlands

T-Mobile Netherlands BV and Others, Case C-8/08 (2009)

The case concerned an exchange of information among competitors.

The Court emphasised the competition-law significance of exchanges that reduce uncertainty concerning competitors' future market conduct.

Strategic-cartography relevance

This is particularly important for strategic intelligence systems.

A market-intelligence mechanism can become problematic where it enables competitors to understand:

• future pricing;
• strategic intentions;
• commercial plans;
• market behaviour.

Principle

An exchange of information capable of removing uncertainty concerning competitors' intended behaviour may raise serious competition-law concerns.

5. Eturas

Eturas UAB and Others, Case C-74/14 (2016)

Eturas concerned an online travel-booking platform and communications concerning restrictions on discounting.

The case is particularly relevant to modern digital market cartography.

Importance

The platform effectively became a central technological intermediary through which information concerning competitors' commercial conduct could be transmitted.

The case illustrates the importance of mapping:

platform → participating firms → information → algorithm/system → commercial behaviour

Principle

Participation in a common technological environment can raise concerted-practice issues where undertakings become aware of and participate in mechanisms capable of coordinating competitive behaviour.

6. Google Shopping

Google Search (Shopping), Commission Decision AT.39740 (2017)

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

The decision concerned Google's conduct in search results and the relationship between:

• general search;
• specialised comparison-shopping services;
• traffic;
• visibility;
• ranking;
• platform power.

Strategic-cartography relevance

This illustrates why digital market mapping must include adjacent markets and platform ecosystems.

A platform may have the ability to use power in one market to influence competition in another.

Principle

The competitive assessment of digital platforms may require examination of how control over an important intermediary or infrastructure affects adjacent competitive markets.

7. Microsoft

Microsoft Corp. v Commission, Case T-201/04 (2007)

The case concerned Microsoft's position in software markets and interoperability issues.

The Commission's intervention involved relationships between:

• operating systems;
• work-group server operating systems;
• interoperability information;
• software developers;
• downstream competitors.

Strategic-cartography significance

The case demonstrates that technology markets must often be mapped according to interoperability and technical dependencies, not merely product labels.

Principle

Control over an important technological interface can affect competition in neighbouring markets.

8. Intel

Intel Corp. v Commission, Case C-413/14 P (2017)

The Intel litigation concerned alleged exclusionary rebates and the assessment of conduct by a dominant undertaking.

The subsequent judicial treatment emphasised the importance of examining the actual or potential effects of the conduct where appropriate.

Cartographic significance

The relevant map can include:

• dominant supplier;
• downstream customers;
• competing suppliers;
• customer demand;
• switching possibilities;
• rival access.

The case illustrates why market mapping should incorporate economic effects and competitive constraints, rather than relying exclusively on formal classifications.

9. Expedia

Expedia Inc. v Autorité de la concurrence and Others, Case C-226/11 (2012)

The case concerned competition-law thresholds and agreements affecting competition.

It is useful for understanding the importance of assessing competitive significance in context.

Strategic-cartography relevance

Market mapping helps distinguish between:

• arrangements with negligible competitive significance; and
• arrangements capable of materially affecting competitive conditions.

10. Cartography, Market Transparency and Coordinated Effects

Strategic market mapping becomes especially important where the market is:

• concentrated;
• transparent;
• repetitive;
• technologically monitored;
• characterized by stable demand;
• characterized by frequent interaction.

For example:

Competitor A

↓ price information

Data intermediary

↓ aggregated or individualised information

Competitor B

↓

automatic pricing response

This can create a feedback loop.

Competition authorities therefore increasingly examine not merely the existence of market information but how information moves through the competitive system.

11. Market Cartography and Hub-and-Spoke Arrangements

A particularly important structure is the hub-and-spoke arrangement.

Structure

Competitor A
↘
Platform / intermediary
↗
Competitor B

The intermediary may facilitate the transmission of information between competitors.

Potentially sensitive information may include:

• prices;
• discounts;
• inventory;
• customers;
• future strategy.

The intermediary's role therefore becomes an important part of the market map.

12. Market Cartography and Data Brokers

Data brokers can occupy a strategically important position.

Consider:

Retailers

→

Data broker

→

Competitors

The broker may possess information concerning:

• sales;
• customer behaviour;
• prices;
• demand;
• geographic trends.

If commercially sensitive information is sufficiently granular and current, its dissemination may reduce competitive uncertainty.

The competition-law assessment depends upon the structure and circumstances of the information exchange.

13. Market Cartography and Geographic Allocation

Strategic market maps can also reveal geographic allocation.

For example:

If competitors agree to divide territories or customers, the map can become evidence of a market-allocation arrangement.

The crucial distinction is between:

• independently choosing where to compete; and
• agreeing with competitors not to compete in particular territories or customer groups.

14. Market Cartography and Dominance

A dominant undertaking may use market intelligence to identify:

• emerging competitors;
• vulnerable customers;
• potential entrants;
• technological substitutes.

Competition concerns may arise if that information is then used to:

• exclude entrants;
• discriminate against rivals;
• foreclose distribution;
• impose retaliatory conditions;
• acquire nascent competitors for exclusionary purposes.

Market cartography therefore has a dual character:

It can improve competition-law compliance, but it can also reveal or facilitate strategies that undermine competition.

15. Compliance Framework for Strategic Market Cartography

Companies conducting strategic market intelligence should establish safeguards.

Step 1 — Classify information

Separate:

• public information;
• historical information;
• aggregated information;
• commercially sensitive information;
• future strategic information.

Step 2 — Identify the source

Determine whether information comes from:

• public sources;
• customers;
• suppliers;
• competitors;
• intermediaries;
• trade associations;
• consultants.

Step 3 — Determine sensitivity

High-risk information includes:

• future prices;
• future output;
• customer-specific strategies;
• bidding intentions;
• planned capacity;
• individualised competitor data.

Step 4 — Control dissemination

Access should be restricted to personnel with legitimate business requirements.

Step 5 — Maintain records

Companies should document:

• source;
• purpose;
• methodology;
• aggregation;
• lawful basis;
• recipients.

Step 6 — Establish escalation mechanisms

Potentially sensitive competitor information should be reviewed by competition counsel.

16. Strategic Market Cartography in Merger Investigations

A merger investigation may construct several overlapping maps:

Horizontal map

A ↔ B ↔ C

Competitors supplying the same product.

Vertical map

Supplier → Manufacturer → Distributor → Consumer

Conglomerate map

Product A
↘
Platform
↗
Product B

Technology map

Hardware → Software → Data → Cloud → Platform

Geographic map

Region 1 → Region 2 → Region 3

The combined maps can reveal competitive relationships that a single market-share calculation may conceal.

17. Strategic Market Cartography and Innovation Competition

Traditional market maps often focus on existing products.

Modern antitrust analysis may also consider innovation pipelines.

For example:

Established technology

vs.

Emerging technology

vs.

Potential substitute

A firm may have relatively modest current market share but possess a strategically important innovation that could constrain an incumbent.

Consequently, market cartography should sometimes include:

• R&D projects;
• patents;
• emerging technologies;
• start-ups;
• pipeline products;
• technological substitutes.

This is particularly relevant to technology, pharmaceuticals, biotechnology, AI and energy markets.

18. Strategic Market Cartography and Network Effects

In platform markets, the map can become circular:

More users

↓

More data

↓

Better service

↓

More users

At the same time:

More sellers

↓

More consumer choice

↓

More consumers

↓

More sellers

Such network effects may create barriers to entry.

Competition analysis therefore needs to determine whether the network creates:

• genuine efficiencies;
• economies of scale;
• switching costs;
• lock-in;
• tipping;
• exclusionary effects.

19. Strategic Market Cartography and Remedies

Market mapping is also useful after an infringement has been established.

Authorities may identify the precise competitive bottleneck and design remedies such as:

• access obligations;
• interoperability;
• divestiture;
• licensing;
• non-discrimination;
• data portability;
• structural separation;
• behavioural commitments.

A remedy should correspond to the competitive problem identified by the market map.

20. Key Legal Principles

The principal lessons from competition law concerning strategic market cartography are:

1. Market definition is evidence-driven

A market cannot be defined solely by corporate descriptions or internal strategy documents.

2. Market share is not the entire analysis

Competitive constraints, entry barriers and buyer power matter.

3. Information can have competitive significance

The exchange of strategic information can reduce uncertainty among competitors.

4. Digital intermediaries matter

Platforms may function as hubs connecting multiple competitors.

5. Technology can facilitate coordination

Common algorithms and systems may alter the competitive significance of information.

6. Geographic structure matters

Territorial and customer allocation may constitute serious competition concerns.

7. Vertical relationships matter

Control over upstream or downstream infrastructure can produce foreclosure effects.

8. Dynamic competition matters

Potential competitors and innovation pipelines can constrain existing firms.

Conclusion

Strategic market cartography is essentially the systematic mapping of competitive structure and strategic dependencies within a market. It provides competition authorities, courts and businesses with a framework for understanding market definition, dominance, coordination, mergers, vertical restraints, digital ecosystems and access-related competition concerns.

Its legal importance is particularly pronounced in modern markets where competition is no longer confined to straightforward product-to-product rivalry. Platforms, algorithms, data brokers, interoperability systems, infrastructure, intellectual property and network effects create multi-layered competitive ecosystems.

The principal competition-law boundary is therefore:

Mapping the market to understand competition is generally legitimate; using market intelligence to coordinate competitors, exclude rivals, foreclose access, or otherwise undermine competitive rivalry can attract antitrust scrutiny.

The cases of United Brands, Hoffmann-La Roche, Airtours, T-Mobile Netherlands, Eturas, Google Shopping, Microsoft and Intel collectively demonstrate how market structure, information flows, technological dependencies, dominance and competitive effects interact in modern antitrust analysis.