Anticompetitive Behavior and Antitrust Regulation
Common Restrictive Business Practices
Restrictive business practices fall into two categories based on where in the supply chain the agreement happens. Understanding this distinction matters because courts treat them differently.
Horizontal restraints are agreements between competitors at the same level of the supply chain. These tend to be the most damaging to consumers because they directly eliminate the rivalry that keeps prices low.
- Price fixing occurs when competitors agree to charge the same or similar prices. For example, gasoline retailers in a region might secretly agree to keep pump prices above a certain level.
- Market allocation involves competitors dividing up markets by geography or customer type so they don't compete with each other. Two pharmaceutical companies might agree that one sells only in the U.S. while the other takes Europe.
- Bid rigging happens when competitors coordinate their bids to predetermine who wins a contract. This is common in construction, where firms take turns submitting the lowest bid while others intentionally bid high.
Vertical restraints are agreements between firms at different levels of the supply chain, such as a manufacturer and a retailer. These are more nuanced because they can sometimes improve efficiency.
- Resale price maintenance involves a manufacturer setting a minimum (or maximum) price at which retailers can sell its products. An electronics brand might require that no retailer sell its headphones below $99.
- Exclusive dealing requires a retailer to carry only one manufacturer's products. A beverage distributor, for instance, might be contractually barred from also distributing a rival brand.
- Territorial restrictions limit the geographic areas where a retailer can sell a manufacturer's products. Franchise agreements commonly include these.
Tying vs. Bundling vs. Predatory Pricing
These three practices are often confused, but they work in distinct ways.
Tying sales force a buyer to purchase a second product (the "tied" product) as a condition of buying the first (the "tying" product). The concern is that a firm with market power in one product can use tying to muscle into a different market. A classic example: a printer manufacturer requiring customers to buy its branded ink cartridges to use with the printer. Microsoft's bundling of Internet Explorer with Windows was treated as a tying case because purchasing Windows effectively required taking Internet Explorer too.
Bundling offers two or more products together as a package, often at a discount.
- Pure bundling means the products are only available as a package and can't be purchased separately (traditional cable TV packages).
- Mixed bundling means products are available individually and as a discounted package (software suites like Microsoft Office).
The key difference from tying: bundling typically offers a price incentive rather than a hard requirement.
Predatory pricing involves setting prices below cost to drive competitors out of the market. The predatory firm absorbs short-term losses, waits for rivals to exit, and then raises prices to recoup those losses. This strategy requires deep financial resources and significant market power. Amazon's aggressive pricing in certain product categories has faced scrutiny on these grounds. Proving predatory pricing in court is difficult because you have to show both below-cost pricing and a realistic chance of recouping losses later.
Application of Antitrust Concepts
Courts and regulators rely on several analytical tools when evaluating whether a practice is anticompetitive.
Market power is the ability of a firm to profitably raise prices above competitive levels. Regulators assess it by looking at market share, barriers to entry, product differentiation, and buyer power. Google's dominance in online search (roughly 90% market share in many countries) is a textbook example of substantial market power.
Per se illegality applies to practices considered so inherently harmful that they're illegal without any further analysis. Price fixing and horizontal market allocation fall into this category. If airlines are caught secretly agreeing on ticket prices, prosecutors don't need to prove the agreement actually raised prices or harmed consumers. The agreement itself is enough.
Rule of reason is used for practices that could be anticompetitive but might also have legitimate pro-competitive benefits. Under this standard, courts weigh the practice's benefits against its harms, considering factors like market power, intent, and overall impact on consumers. Exclusive contracts in professional sports leagues, for instance, might restrict some competition but also help leagues maintain quality and stability. Most vertical restraints are evaluated under the rule of reason.
Relevant market defines the boundaries of the market where the alleged anticompetitive behavior takes place. It has two dimensions:
- Product dimension: What products are reasonable substitutes? (Are tablets in the same market as laptops?)
- Geographic dimension: Over what area do firms actually compete?
Getting the relevant market right is critical because it determines how large a firm's market share appears. A company might look dominant in a narrow market but much less powerful in a broader one.
Antitrust Regulation and Enforcement
The U.S. antitrust framework rests on a few key laws and institutions.
The Sherman Antitrust Act (1890) is the foundational U.S. antitrust law. Section 1 prohibits contracts and conspiracies that restrain trade (like price fixing). Section 2 prohibits monopolization and attempts to monopolize a market. Violations can result in criminal penalties, including fines and imprisonment.
The Clayton Act (1914) strengthened the Sherman Act by targeting specific practices like price discrimination, exclusive dealing, and mergers that may substantially lessen competition. It also introduced the ability to challenge anticompetitive mergers before they happen.
The Federal Trade Commission (FTC) is the government agency responsible for enforcing antitrust laws alongside the Department of Justice's Antitrust Division. The FTC investigates anticompetitive conduct, reviews proposed mergers, and promotes consumer protection.
Merger regulation is one of the most visible forms of antitrust enforcement. Before large mergers go through, companies must notify regulators, who evaluate whether the combined firm would have too much market power. Regulators may approve the merger, block it, or approve it with conditions (like requiring the sale of certain business units). The goal is to prevent markets from becoming so concentrated that they function like monopolies or tight oligopolies.