The Rise of Market Power and the Macroeconomic Implications
by Jan De Loecker, Jan Eeckhout and Gabriel Unger · Quarterly Journal of Economics
Empirical study estimating firm-level markups from US accounting data, documenting a rise from roughly 18 percent above marginal cost in 1980 to 67 percent, and linking concentrated market power to falling labour share and business dynamism.
More resources on Market Structures
Industrial Organization I (MIT 14.271)
PhD-level treatment of imperfect competition that integrates theory with empirical work on demand estimation, market power, entry and mergers. Includes 26 lecture videos, lecture slides, readings, exams, and problem sets with solutions, preparing learners to read and conduct research in the field.
The Theory of Industrial Organization
Graduate reference treating monopoly pricing, price discrimination, quality choice and vertical restraints, then strategic interaction between firms: Cournot and Bertrand competition, capacity constraints, repeated games, product positioning and entry under asymmetric information. Assumes calculus and game theory.
Introduction to Industrial Organization (2nd edition)
Undergraduate industrial organization text covering monopoly pricing, Cournot and Bertrand oligopoly, collusion, entry deterrence, product differentiation and network effects. Verbal exposition carries the argument, with optional formal sections and exercises for readers who want the algebra.
The Economy 2.0: Microeconomics (CORE Econ)
Open-access textbook whose microeconomics units begin with price-setting firms facing downward-sloping demand, then derive competitive price-taking as a special case. Units 7 and 8 cover markups, demand elasticity, economies of scale, deadweight loss and competition policy.