EU Competition Law: Article 101 of the TFEU

Article 101(1) of the Treaty on the Functioning of the European Union (TFEU) prohibits agreements and practices that prevent, restrict or distort competition within the internal market.

Sub‑paragraphs (a)–(e) provide a non‑exhaustive list of examples, covering both:

• Horizontal agreements: between competitors (classic cartels)
• Vertical agreements: between manufacturers and retailers, affecting distribution and availability of goods and services

The provision is deliberately broad, allowing the EU to tackle a wide range of anti‑competitive behaviour.

The European Commission investigates suspected breaches. Undertakings involved in price‑fixing or other cartel activity face substantial fines, unless they qualify for leniency. Article 101(2) renders prohibited agreements automatically void unless they meet the exemption criteria in Article 101(3).

Although the TFEU does not define “undertakings”, EU case law interprets the term broadly to include any natural or legal person engaged in economic activity, regardless of legal form or profit motive.

Cartels

Cartels typically operate through secret agreements between competitors.

Members may meet privately to fix prices, allocate markets, or exchange sensitive commercial information. These arrangements often persist for years because they are mutually beneficial.

The Commission’s leniency programme encourages cartel members to come forward. The first undertaking to provide decisive evidence may receive full immunity, while others face heavy penalties. This policy intentionally destabilises cartels from within.

The Commission has wide investigative powers and may conduct dawn raids at any premises within the EU. Premises outside the EU fall outside its jurisdiction, even if owned by EU companies.

Under UK law, the Enterprise Act 2002 makes cartel conduct a criminal offence. Individuals may be imprisoned or disqualified from acting as company directors.

Agreements

Article 101(1) covers far more than formal contracts. It includes:

• Written agreements
• Oral agreements
• Informal understandings
• “Gentlemen’s agreements”

In Chemiefarma (C‑41/69), the Court confirmed that even informal arrangements backed only by trust fall within Article 101.

The scope is intentionally wide. Because Article 101(1) also covers concerted practices, it is not always necessary to draw precise boundaries around the concept of “agreement”.

In BMW Belgium (Joined Cases 32/78 & 36‑82/78), signing and returning a non‑contractual document was held to constitute an agreement. In Trefilenrope (T‑148/89), the General Court reaffirmed that agreements include informal and non‑binding arrangements.

In DSM (Polypropylene) (T‑8/89), the Commission uncovered a long‑running cartel involving 15 firms.

Although the arrangement was oral and undocumented, the companies shared a joint intention to participate in a single overall agreement. Not all firms attended every meeting, but participation in the overall scheme was enough to establish liability.

Decisions by Associations of Undertakings

Trade associations often set standards or issue guidance for their members. These decisions can fall within Article 101(1) if they influence pricing, market access or commercial behaviour.

Even information‑sharing may breach Article 101 if it enables dominant firms to coordinate strategies or resist competition. The association itself does not need to engage in commercial activity.

In IAZ International Belgium (Joined Cases 96‑102, 104‑106, 86 & 110/82), the Court held that decisions of associations can infringe Article 101. However, in Germany v Delta (C‑153/93), the Court recognised a boundary: Article 101 does not apply where the individuals involved are genuinely independent of their parent bodies.

Concerted Practices

“Concerted practice” is another broad concept capturing cooperation that falls short of a formal agreement. Its meaning was first explored in Dyestuffs (Case 48/69), where the Court held that parallel price increases in an oligopolistic market could constitute a concerted practice if supported by a precise and consistent body of evidence.

The Court defined concerted practice as:

“A form of coordination between undertakings which, without having reached the stage where an agreement has been concluded, knowingly substitutes practical cooperation for the risks of competition.”

Parallel behaviour alone is not conclusive, but it may be evidence of coordination.

In T‑Mobile Netherlands (C‑47/09), the Court held that a single meeting between competitors may be enough to establish a concerted practice. In Suiker Unie (Cases 40/73 etc.), the Court confirmed that concerted practices may be direct or indirect, and need not be verbal or written.

Horizontal and Vertical Agreements

Article 101(1) applies to:

• Horizontal agreements: between competitors (e.g., manufacturers fixing prices)
• Vertical agreements: between firms at different levels of the supply chain (e.g., manufacturer–distributor arrangements)

Horizontal agreements typically harm inter‑brand competition, limiting consumer choice. Vertical agreements often affect intra‑brand competition, restricting how a product is distributed.

In Consten & Grundig (Joined Cases 6 & 58/64), the Court held that it is unnecessary to prove actual anti‑competitive effects where the object of the agreement is to restrict competition. This principle applies to both horizontal and vertical arrangements.

Exceptions: Article 101(3)

Not all restrictive agreements breach Article 101(1). Article 101(3) provides exemptions where the benefits outweigh the anti‑competitive effects, for example, improving production, promoting innovation or benefiting consumers.

The list in Article 101(3) is non‑exhaustive, giving the Commission flexibility to recognise new categories of exempt agreements.

In Viho Europe (T‑102/92), the Court held that Article 101 does not apply to arrangements between a parent company and its subsidiary where they form a single economic unit.

The Commission interprets “agreement” and “cartel” broadly but interprets exemptions narrowly. Any contact between competitors may raise suspicion, especially where they hold significant market share.