1. Introduction

An artificial market bottleneck arises where access to an important input, infrastructure, interface, technology, distribution channel, data resource, or platform is deliberately restricted or controlled in a manner that can distort competition.

A bottleneck is economically significant when competitors cannot effectively reach customers or operate downstream without access to a particular facility or resource.

Examples include:

• a dominant digital platform controlling access to users;
• an operating system controlling access to application distribution;
• a payment network controlling essential transaction infrastructure;
• a port controlling access to a geographic market;
• a dominant cloud provider restricting interoperability;
• a telecommunications operator controlling essential network infrastructure;
• a dominant data platform restricting access to indispensable datasets;
• a vertically integrated firm controlling an essential input needed by downstream rivals.

The word “artificial” is important. A bottleneck may arise naturally because of geography, technology, economies of scale or substantial investment. Competition law becomes particularly relevant where the bottleneck is created, maintained, strengthened, or exploited through conduct that restricts competition.

2. Meaning of a Market Bottleneck

A market bottleneck can be represented as:

Upstream input → Bottleneck → Downstream competitors → Consumers

If one undertaking controls the bottleneck, competitors may become dependent upon it.

For example:

Data → dominant platform → competing AI applications → consumers

If the platform selectively restricts access to the data or interface while favouring its own downstream service, the bottleneck may become an instrument of foreclosure.

3. Natural vs Artificial Bottlenecks

Natural bottleneck

A bottleneck can arise from:

• geography;
• high infrastructure costs;
• economies of scale;
• limited spectrum;
• physical network characteristics;
• scarce natural resources.

Artificial bottleneck

An artificial bottleneck may arise through:

• contractual restrictions;
• exclusionary licensing;
• refusal to supply;
• discriminatory access;
• interoperability restrictions;
• exclusive dealing;
• technical degradation;
• tying;
• self-preferencing;
• control of APIs;
• strategic acquisition.

The distinction is important because competition law does not generally require firms to eliminate every natural economic constraint.

4. Why Bottlenecks Matter to Competition

A bottleneck can give its controller the ability to influence downstream competition.

The controller may potentially:

1. deny access;
2. increase access costs;
3. discriminate between competitors;
4. favour its own downstream operations;
5. impose restrictive conditions;
6. reduce interoperability;
7. control technical standards;
8. acquire potential competitors.

This can lead to:

Input control → competitor disadvantage → reduced entry → weaker competition → potential consumer harm.

5. Essential Facilities Doctrine

The essential facilities doctrine is one of the most important legal concepts associated with bottlenecks.

It concerns circumstances in which a firm controlling an important facility may, under specific legal conditions, have obligations concerning access by competitors.

However, the doctrine is not equivalent to:

“Every important facility must be shared.”

Competition law generally attempts to balance:

• the right of firms to control their assets;
• investment incentives;
• innovation;
• competition;
• access requirements.

6. Article 102 TFEU and Bottlenecks

Under EU competition law, Article 102 TFEU prohibits abuse of a dominant position where the relevant conduct falls within its scope.

Potential bottleneck-related abuses include:

• refusal to supply;
• discriminatory access;
• tying;
• margin squeeze;
• discriminatory pricing;
• exclusionary contractual arrangements;
• interoperability restrictions.

The existence of a bottleneck alone does not establish an Article 102 infringement. The relevant undertaking must generally possess the required degree of market power and the conduct must satisfy the applicable abuse analysis.

7. Indian Competition-Law Framework

In India, artificial bottlenecks may particularly engage Section 4 of the Competition Act, 2002 where a dominant enterprise uses its position in an exclusionary manner.

Relevant forms of conduct can include:

• limiting access to markets;
• denial of market access;
• discriminatory conditions;
• leveraging dominance;
• refusal to deal;
• tying;
• predatory or exclusionary strategies.

Section 3 may also become relevant where agreements between undertakings create anticompetitive access restrictions.

8. Case Law

1. United Brands Company v Commission

Case 27/76, CJEU

The European Court considered the conduct of United Brands in relation to the banana market.

Among the issues was the company's refusal to supply a customer, which formed part of the broader assessment of abusive conduct.

Significance

The case established important principles concerning the conduct of a dominant undertaking and refusal to deal.

Bottleneck relevance

Where a dominant undertaking controls an important supply channel, selective refusal to supply can potentially affect downstream competition.

However, refusal to supply is not automatically abusive; the legal and economic circumstances matter.