The Great Reversal by Thomas Philippon: Study & Analysis Guide

For decades, the United States was heralded as the world’s beacon of competitive, dynamic capitalism. In The Great Reversal, economist Thomas Philippon presents a startling and data-driven counter-narrative: since the early 2000s, American markets have become less competitive, more concentrated, and increasingly inefficient. This isn't a story of technological destiny but of political choice. Philippon argues that the erosion of competition is a primary culprit behind rising prices, stagnant wages, and lagging investment, challenging the very foundations of conventional economic wisdom about the U.S. economy.

The Transatlantic Puzzle: A Revealing Comparison

The analytical core of Philippon’s argument is an innovative transatlantic comparison. He uses European markets as a natural benchmark to assess the health of U.S. competition. For much of the late 20th century, U.S. markets were indeed more competitive and dynamic than their European counterparts. However, Philippon meticulously documents a great reversal of this trend over the past two decades.

While Europe advanced with deeper single-market integration and pro-competition regulations, the U.S. began to stall and backslide. This divergence is evident across key industries. In telecom, Americans pay significantly more for mobile and broadband services than citizens in comparable European nations. In airlines, a wave of mergers has left the U.S. with a highly concentrated industry where fees are high and service quality is often criticized. The banking sector, despite consolidation in Europe, remains more competitive there than in the U.S., where a handful of giants dominate. This comparison is powerful because it controls for global technological trends; if high prices and concentration were inevitable results of innovation, both regions should reflect it. The fact that they don’t points to domestic policy and institutional failures in America.

Measuring the Concentration of Market Power

To move beyond anecdotes, Philippon grounds his thesis in empirical evidence of rising market concentration. Concentration measures how much of an industry’s total sales or assets are controlled by its largest firms. A common metric is the Herfindahl-Hirschman Index (HHI), calculated by squaring the market share of each firm in the industry and then summing the resulting numbers.

$$\text{HHI}=\sum _{i=1}^N{s}_i^2$$

where $s_i$ is the market share of firm $i$. An HHI approaching 0 indicates perfect competition, while an HHI nearing 10,000 indicates a monopoly. Philippon shows a broad-based increase in average industry concentration across the U.S. economy. More telling than simple concentration, however, is the evidence of rising price-cost margins—the gap between what a company charges and its cost of production. Increasing margins suggest firms have the market power to raise prices above competitive levels, directly harming consumer welfare. This growing market power, Philippon argues, leads to the triad of negative outcomes: higher prices for consumers, lower investment by complacent incumbents, and suppressed wages due to reduced economic dynamism.

The Political Economy Mechanism: Lobbying and Regulatory Capture

Identifying rising concentration is one thing; explaining why it happened is another. Philippon’s central causal argument points squarely to politics. The reversal is not an accident of the free market but a result of regulatory capture, a process where regulatory agencies, created to act in the public interest, end up advancing the commercial or political concerns of the industries they are meant to oversee.

The engine of this capture is lobbying. Philippon documents the explosive growth in lobbying expenditures in Washington, D.C., which far outpaces the growth of the economy itself. This spending is an investment for large firms. It funds efforts to shape legislation, influence appointments to key regulatory bodies like the Federal Communications Commission (FCC) or the Department of Justice’s Antitrust Division, and write favorable rules. The result is a weakening of antitrust enforcement (allowing more mergers to proceed) and the erection of barriers to entry (like complex licensing laws or patent thickets) that protect incumbents from new competitors. In this framework, lax regulation isn’t a sign of a "free" market; it’s often the successful outcome of a political strategy by powerful firms to kneecap competition.

Critical Perspectives

While Philippon’s thesis is compelling and rigorously presented, it exists within an ongoing academic and policy debate. Engaging with these critiques is essential for a full understanding of the book’s impact.

• The Link Between Concentration and Welfare: Some economists question whether today’s higher concentration necessarily translates to reduced consumer welfare. They posit that in the digital age, "winner-take-most" markets can be driven by extreme economies of scale and network effects that actually benefit consumers through free services (like social media) or rapid innovation. The counter-argument, which Philippon underscores, is that in sectors like telecom, airlines, and healthcare, the consumer harm in the form of supra-competitive prices is clear and measurable.
• The Innovation Defense: A common defense of large, concentrated firms is that they are the primary source of research and development (R&D). Philippon counters that the data shows aggregate U.S. business investment, including in R&D, has been weak despite high corporate profits. Market power can reduce the incentive to innovate by shielding firms from the competitive pressure to improve.
• Measurement and Causality: Critics also scrutinize the measures of concentration and profitability. For instance, using national market definitions may miss competitive pressures from global firms or from disruptive substitutes. While the transatlantic comparison is a powerful tool for causality, isolating the specific effect of lobbying from other cultural or structural differences between the U.S. and Europe remains complex.

Summary

• The Core Thesis: Contrary to long-held belief, U.S. markets have become less competitive and more concentrated over the past twenty years, leading to higher prices, lower investment, and reduced economic dynamism.
• The Key Evidence: Philippon uses a transatlantic comparison with Europe as a analytical innovation, showing that while Europe became more competitive, the U.S. regressed, particularly in industries like telecom, airlines, and banking.
• The Primary Cause: The reversal is explained politically, not technologically. Soaring lobbying expenditures and regulatory capture have weakened antitrust enforcement and raised barriers to entry, allowing firms to build and exploit market power.
• The Central Debate: The book’s argument is part of a live debate on whether modern concentration inherently harms welfare, with discussions centering on the digital economy, incentives for innovation, and methodological challenges in measuring competition.
• The Ultimate Implication: The problem is not inevitable. The "great reversal" was caused by policy choices, and it can be undone by them—through revitalized antitrust enforcement and political reforms that reduce the influence of money on regulation.