Larry White on Antitrust & Market Delineation of Monopolization Cases

Episode Summary

Executive Summary: Larry White argues that modern antitrust should stay grounded in microeconomic analysis. He defends merger-guideline market definition via the hypothetical monopolist test, but says it fails in monopolization cases like Google and Facebook because firms already facing competition will always deny they can raise price. Without a workable market-delineation paradigm, plaintiffs risk erratic outcomes and weak cases.

Main Topics: Antitrust’s shift away from Chicago-school economics (Priority: 5/5): White reflects on the 40-year arc from the early 1980s, when economics became central to antitrust, to a recent countertrend that mixes in broader policy goals. He argues antitrust should focus on its core economic mission rather than becoming a tool for everything. Success of the 1982 merger guidelines (Priority: 5/5): White says the horizontal merger guidelines, built around the hypothetical monopolist/SNIP framework, were a major intellectual advance and remain the foundation of serious merger control today. Why the merger market-definition test fails in monopolization (Priority: 5/5): He explains that asking a firm whether it can raise price by a small amount is valid for mergers but not for monopolization, because any profit-maximizing seller—monopolist or not—will typically say no. The Cellophane fallacy and its modern relevance (Priority: 5/5): White uses the DuPont Cellophane case to show how courts can misread competitive constraints by defining markets too broadly when a firm already charges a monopoly price. He says this remains the central obstacle in monopolization cases. Google and Facebook as unresolved market-definition cases (Priority: 4/5): He argues the DOJ and FTC complaints rely on hand-waving about unique or special products instead of a rigorous method for delineating relevant markets in search and social networking. Need for retrospective and counterfactual analysis (Priority: 4/5): White suggests merger enforcement should be assessed by close-case retrospectives and monopolization should be approached through reverse engineering: what would the market look like absent the challenged conduct? Why antitrust economists have not solved the problem (Priority: 3/5): White says the profession has not developed a convincing framework for monopolization market definition, despite the issue being central to high-profile tech cases.

Key Arguments: Merger analysis works because it is forward-looking: the hypothetical monopolist test asks whether a merger would enable prices to rise or quality to fall. That same test does not identify monopoly power in monopolization cases because every profit-maximizing firm will deny it can raise prices further from current levels. The Cellophane case is the classic mistake: current competition can make a monopolist appear to operate in a broad market if analysts define the market at already-inflated prices. Google and Facebook cases currently lack a rigorous market-delineation methodology; the agencies are relying heavily on claims that the services are unique or special. The proper way to assess merger enforcement is retrospective study of close cases and whether they later produced price increases, not simple case counts. For monopolization, economists should reverse engineer the but-for world and model outcomes absent the allegedly exclusionary conduct. Antitrust should stay focused on antitrust-specific harms; broader social or industrial policy concerns belong in broader public policy debates. Without a market definition paradigm, monopolization outcomes will remain dependent on judicial intuition and narrative rather than consistent economic analysis.

Data Points: Date of podcast: November 19, 2021 - Episode introduction and setting Merger guidelines age: 39 years later - White notes that the 1982 horizontal merger guidelines were still in use in 2021 Cellophane case age: 65 years after the cellophane case - White says monopolization still lacks a comparable paradigm decades later FTC filing length: 55-page brief - White cites a recent FTC filing in the Facebook case FTC market share claim: over 60% - White says the FTC parenthetically claimed Facebook had over a 60% share, without documentary support Market share in trial court example: 20% share - In the DuPont case, the district court found DuPont had only a 20% share in the broader flexible wrapping materials market Research team size suggested: 4 or 5 economists - White’s proposed solution is to lock several smart economists in a room to develop a paradigm Time suggested for model development: 9 months - White’s proposed timeline for economists to work on a monopolization market-definition framework

Pivotal Quotes: "the right way for those issues to be brought in as part of larger public policy decisions, I think it's best to focus antitrust where antitrust is best applied and using the tools that best allow antitrust to do what it's supposed to do." — Larry White: On keeping antitrust focused on its core economic mission "that is the cellophane fallacy" — Larry White: White’s explanation of why asking firms whether they can raise price mismeasures market power in monopolization cases "we are going to explain da-da-da-da-da-da-da. They haven't said that." — Larry White: On the DOJ and FTC lacking a clear, usable market-delineation method in Google and Facebook cases

Implications: White’s critique suggests major tech monopolization cases may struggle unless agencies develop a real counterfactual market-definition method. For antitrust practice, the message is to tighten merger analysis, avoid overbroad policy ambitions, and build better economics for exclusionary-conduct cases.