Benkard, C. Lanier; Yurukoglu, Ali; Zhang, Anthony Lee - National Bureau of Economic Research - 2021
This paper uses new data to reexamine trends in concentration in U.S. markets from 1994 to 2019. The paper's main contribution is to construct concentration measures that reflect narrowly defined consumption-based product markets, as would be defined in an antitrust setting, while accounting for...