A collection of fragments of understanding in the pursuit of deeper questions.
A preliminary definition. Antitrust law is a set of legal rules aimed at preventing some firms' practices that may worsen market well-functioning, as it results from consumer welfare variations. These are the 3 Pillars of Antitrust Law:
The U.S. Sherman Act of 1890 Section 1. Anticompetitive Agreements. Every contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce among the several States, or with foreign nations, is declared to be illegal. Every person who shall make any contract or engage in any combination or conspiracy hereby declared to be illegal shall be deemed guilty of a felony, and, on conviction thereof , shall be punished by fine not exceeding $10,000,000 if a corporation, or, if any other person, $350,000, or by imprisonment not exceeding three years, or by both said punishments, in the discretion of the court.
Section 2. Monopolization Conduct. Every person who shall monopolize, or attempt to monopolize, or combine or conspire with any other person or persons, to monopolize any part of the trade or commerce among the several States, or with foreign nations, shall be deemed guilty of a felony, and, on conviction thereof, shall be punished by fine not exceeding $10,000,000 if a corporation, or, if any other person, $350,000, or by imprisonment not exceeding three years, or by both said punishments, in the discretion of the court.
The Treaty of the Functioning of the EU. Article 101
Article 102. Any abuse by one or more undertakings of a dominant position within the internal market or in a substantial part of it shall be prohibited as incompatible with the internal market in so far as it may affect trade between Member States. Such abuse may, in particular, consist in:
Mergers in the U.S. The Sherman Act covered price fixing, other anticompetitive agreements, and monopolization, not mergers and acquisitions of competitors. Thus, corporations wishing to coordinate price had the option of merging into a single firm to «eliminate» any form of competition ... forever.\ Indeed, after the enactment of the Sherman Act, a sharp increase in the number of mergers was registered. Therefore, Section 7 of the Clayton Act of 1914 extended antitrust to cover mergers reducing competition (many amendments and other acts to fill many loopholes in the legislation). It says:"No person engaged in commerce or in any activity affecting commerce shall acquire, directly or indirectly, the whole or any part of the stock or other share capital and no person subject to the jurisdiction of the Federal Trade Commission shall acquire the whole or any part of the assets of another person engaged also in commerce or in any activity affecting commerce, where in any line of commerce or in any activity affecting commerce in any section of the country, the effect of such acquisition may be substantially to lessen competition, or to tend to create a monopoly".
Mergers in EU, Reg. 139/2004 The Treaty did not contain any rules on mergers (concentrations) [...] and the introduction of a merger control regime was delayed until 1989 because of a series of conflicts and deep differences between the Member States about the scope, objectives and procedures for assessing when a merger should considered unlawful (Reg. n. 4064/89, now Reg. 139/2004).
Thus, nowadays, Article 2, Reg. 139/2004 states that "a concentration which would significantly impede effective competition, in the common market or in a substantial part of it, in particular as a result of the creation or strengthening of a dominant position, shall be declared incompatible with the common market".
Why do we care about U.S. and EU antitrust laws?
In the U.S. 95% of the Antitrust cases are moved by class-actions. While in EU the 90% of Antitrust cases are moved by authorities. In the U.S. courts, antitrust law can determine criminal sanctions towards individuals, while this is not possible in EU.
Firms' Practices Antitrust rules about agreements, monopolistic practices, and merger and acquisitions address only firms' conduct, and not what governments may decide. In other words, both US and EU antitrust laws are concerned with privately initiated restraints of competition and not with those restraints compelled by, or effectively controlled by, the government and its branches. Therefore, firms are liable as long as they have room to decide their own behavior: firms are not liable for antitrust violations when their infringing practices strictly result from statutes, laws, regulations, or when their infringing practices are ratified by governments.
Market Structure and its legal "Sovra-Structure" You can imagine a market as a circle where undertakings are free to adopt their business strategies and different behaviors. The area of the circle can be restricted by the State through laws & regulations. They can set the playground, by limiting access conditions, exit conditions, and more in general fixing the rules of the game.
In regulated markets, the very same regulation may prevent firms from behaving competitively. In this case, firms do not have to bear the responsibility for a behaviour which is prescribed by the law. Then, it is true that antitrust people can do something against anticompetitive laws:
The main goal of Antitrust Law The main aim of competition law is to protect competition in the market as a means of enhancing consumer welfare and of ensuring an efficient allocation of resources. A market performs well if it awards market power to the firms that are performing the best.
Antitrust law protects the well-functioning of the market:
The best firms are those that:
Short Run Effects Antitrust institutions know that firms are worsening market well-functioning when their practices limit output and increase market price! (These are called the "short run effects"). Thus, antitrust law forbids the practices that may reduce market output and increase market price, just because these practices (are assumed to) drive the market away from a better state of the world.
Long Run Effects Antitrust institutions endorse those economic theories showing that, over the long run:
Therefore, antitrust law forbids the practices that reduce product quality, consumers' choice (that is, product variety), and that reduce innovation! (These are called "long run effects").
Pay attention: In practice, many cases are decided on the basis of short run effect. Yet, sometimes (for example, when inventions are involved) long run effects are taken into consideration.
In cases of conflicts, often (not always) the effects on innovation are deemed more important than effects n market output and price. For example, the practices promoting innovation are deemed lawful even when they make market price increase.
In Summary, the practices that may worsen market well-functioning are the practices that may harm consumer welfare over the short and long run, that is, the practices that may:
Antitrust law aims at preventing these practices. But are (and have always been) the goals the same? We do not have time to examine in depth, but:
For Example... The Sherman Act served:
The TFEU not only was supposed to protect those other values/interests, but also to pursue the creation of the single common market.
Competent Authorities in the EU
Powers of Competition Authorities
The Antitrust Offences (What Matters to Us)
(They do not need to be formal, express, or explicit. They may result not only in any exchange of words, but also from a course of dealings, or from other circumstances.)
Firms may adopt the same practices and still be independent one from the other just because they are similar economic agents answering to the same set of economic facts; we will discuss this more.
They are forbidden when they harm the well functioning of the market as it results from CW variations. Therefore, when they produce more anticompetitive than procompetitive effects. As a matter of facts, price fixing/ output limitation/ market division are always forbidden ... they are Cartels! Other types of agreements are judged on a case-by-case basis, taking into account the market shares of the companies, the nature and content of the agreement, market structure, etc.
They are unilateral practices that:
They are forbidden when they change the market structure so to produce a scenario that resembles either a monopoly or an oligopoly What about the efficiencies that they produce? In order to be taken into account as countervailing virtues against the above structural effects, efficiencies must fulfil strict conditions:
Consider that vertical behaviors are the practices that involve firms acting at different levels of the production-distribution chain... These vertical behaviors - whether they take the form of agreements, monopolistic conduct or mergers - are forbidden when they: