Antitrust law promotes competition by prohibiting agreements that restrain trade, monopolization, and anticompetitive mergers. The federal antitrust statutes are brief, but a century of case law has developed complex doctrines that determine what conduct violates the law.
The Sherman Act
Section 1 prohibits contracts, combinations, and conspiracies in restraint of trade. The statute requires an agreement between two or more parties. Unilateral conduct, no matter how anticompetitive, does not violate Section 1.
Per se violations are categories of agreements so inherently anticompetitive that no justification is permitted. Price fixing, market allocation, bid rigging, and group boycotts are per se illegal. Proof of agreement is sufficient for liability. Economic justifications are irrelevant.
Rule of reason analysis applies to agreements outside the per se categories. Courts evaluate whether the restraint unreasonably restricts competition by weighing procompetitive benefits against anticompetitive harms. Market power, market definition, and competitive effects all factor into the analysis.
Section 2 prohibits monopolization and attempted monopolization. Monopoly power alone is not illegal. Acquiring or maintaining monopoly power through anticompetitive conduct violates the statute. Distinguishing aggressive competition from anticompetitive exclusion is the central challenge.
The Clayton Act
Section 7 prohibits mergers and acquisitions whose effect may be to substantially lessen competition or tend to create a monopoly. The statute is preventive, allowing challenges to transactions that threaten future competitive harm.
Hart-Scott-Rodino requires pre-merger notification to the FTC and DOJ for transactions above threshold values. The agencies review proposed transactions and can challenge those they believe would harm competition.
Merger analysis examines market definition, market shares, competitive effects, entry barriers, and efficiencies. Horizontal mergers between competitors receive the most scrutiny. Vertical mergers between firms at different levels of the supply chain receive less but increasing attention.
Section 3 prohibits exclusive dealing and tying arrangements where the effect may be to substantially lessen competition. Unlike Sherman Act analysis, Clayton Act claims do not require showing market power, but practical enforcement typically focuses on agreements with significant market effects.
Enforcement
DOJ Antitrust Division brings criminal and civil enforcement actions. Criminal prosecution focuses on per se violations, particularly price fixing and bid rigging. Individuals face prison sentences. Corporations face massive fines.
FTC enforces through administrative proceedings under Section 5 of the FTC Act, which prohibits unfair methods of competition. FTC authority overlaps substantially with Sherman and Clayton Act coverage.
State attorneys general enforce both federal antitrust law and state antitrust statutes. State enforcement has become increasingly significant, with multistate investigations and litigation targeting major industries.
Private plaintiffs can bring suit for antitrust violations and recover treble damages plus attorney fees. Class actions aggregate claims of consumers and competitors harmed by anticompetitive conduct.
Private Litigation
Standing requires antitrust injury, meaning injury of the type the antitrust laws were intended to prevent and that flows from the anticompetitive effects of the violation. Competitors harmed by more efficient competition lack standing because that harm is not anticompetitive.
Direct purchasers can recover damages from price-fixing conspiracies under federal law. Indirect purchasers, who bought through intermediaries, can recover under state law in many states but face Illinois Brick barriers under federal law.
Treble damages multiply actual damages by three. Combined with joint and several liability among conspirators, treble damages create enormous exposure and settlement pressure.
Class certification is heavily contested. Common issues of agreement and market impact must predominate over individual issues of injury and damages. Defendants fight certification knowing that decertification often leads to favorable settlement.
Cartels and Price Fixing
Cartel detection relies on leniency programs that offer immunity or reduced penalties to conspirators who report violations. The first to report receives the best treatment, creating a race to confess.
International cartels present enforcement challenges. The DOJ pursues foreign nationals who affect U.S. commerce. Extradition and foreign investigations require coordination with competition authorities worldwide.
Circumstantial evidence of agreement includes parallel conduct, communications opportunities, pricing patterns, and industry structure conducive to coordination. Direct evidence of agreement is not required if circumstantial evidence supports an inference of conspiracy.
Penalties for price fixing have escalated dramatically. Corporate fines exceed $1 billion in major cases. Individuals serve years in prison. Civil damages in follow-on litigation multiply the total exposure.
Monopolization
Monopoly power is the power to control prices or exclude competition. Market share is relevant but not determinative. A firm with 70 percent market share in a market with low entry barriers may lack monopoly power. A firm with 50 percent share in a market with high barriers may possess it.
Market definition disputes dominate monopolization cases. The relevant market includes all products reasonably interchangeable by consumers. Defining the market too narrowly inflates market share. Defining it too broadly dilutes it.
Exclusionary conduct that maintains monopoly power violates Section 2. Predatory pricing, exclusive dealing, tying, refusals to deal, and product design changes can all be exclusionary depending on circumstances and justifications.
The line between aggressive competition and anticompetitive exclusion is unclear. Courts struggle to articulate principles that condemn harmful exclusion without chilling beneficial competition.
Vertical Restraints
Resale price maintenance, where a manufacturer sets retail prices, was per se illegal for a century. The Supreme Court reversed course, applying rule of reason analysis. Minimum RPM is now evaluated for reasonableness rather than condemned automatically.
Exclusive dealing requires a buyer to purchase exclusively from one seller. Most exclusive dealing is lawful. Foreclosure analysis examines whether the arrangement forecloses a substantial share of the market and raises rivals’ costs.
Tying occurs when a seller conditions sale of one product on purchase of another. Traditional tying doctrine required market power in the tying product. Modern analysis focuses on competitive effects rather than formal requirements.
For Service Members
Defense industry consolidation raises antitrust concerns with national security dimensions. The DOD reviews mergers for effects on defense industrial base, sometimes conflicting with antitrust enforcement priorities.
Government contracts often require competitive bidding. Bid rigging in government contracting violates both antitrust law and procurement fraud statutes. Penalties include criminal prosecution, civil False Claims Act liability, and debarment.
Veteran-owned businesses participating in set-aside programs face unique competitive dynamics. Collusion among set-aside participants to allocate contracts violates antitrust law despite the program’s purpose of promoting veteran-owned business participation.
Security clearance considerations affect antitrust investigations and litigation in defense industries. Document production and testimony may implicate classified information, requiring special handling procedures.
Defense contractors who become aware of bid rigging or price fixing face compliance dilemmas. Reporting obligations, leniency program benefits, and contract termination risks all factor into response decisions.
A military attorney understands how antitrust enforcement intersects with defense procurement, how national security considerations affect merger review, and how service members and veterans in defense industries navigate antitrust compliance.
Disclaimer
This article is provided for general informational and educational purposes only. Nothing in this article constitutes legal advice, and no attorney-client relationship is formed by reading this content.
Antitrust law is complex and highly fact-specific. Conduct that is lawful in one context may be illegal in another. The information presented here may not reflect the most current legal developments or apply to any specific situation.
Do not rely on this article to make legal decisions. Antitrust violations carry severe criminal and civil penalties. Business practices that may seem competitive can expose companies and individuals to liability.
If you are facing an antitrust investigation, considering business practices with potential antitrust implications, or planning a merger or acquisition, consult with a qualified antitrust attorney who can evaluate your specific situation.
The authors, publishers, and distributors of this content expressly disclaim any liability for actions taken or not taken based on this information. Reading this article does not create an attorney-client relationship with any person or entity.
For businesses in defense industries or those contracting with the military, antitrust compliance intersects with procurement regulations and national security considerations. Seek counsel familiar with both antitrust law and government contracting.