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Causes, Consequences, and Policy Responses to Market Concentration

Overview: Measures of market concentration in many U.S. industries have been rising for nearly four decades. Since the early 2000s, these trends have coincided with a falling labor share of income, declining private investment, and rising corporate profit rates and markups (the difference between price and marginal cost). Philippon argues these patterns are unique to […]

Concerns About Concentration

Overview: A number of studies in recent years have fueled policymakers’ concerns over rising market concentration and the state of competition in US industry. However, determining the relationship between market concentration and other key economic outcomes­—such as markups, profit rates, labor share, and the state of competition more broadly—is fraught with empirical challenges. The state […]