Industrial organization and The Rise of Market Power
梳理了关于市场力量上升的文献，总结销售加权平均加成率上升的研究，并评估一系列行业研究，发现技术进步对经济结果影响重大，而反垄断执法不力并非主因。
This article addresses developments in the literature on The Rise of Market Power . First, it summarizes research about the result of De Loecker et al. (2020) that the sales-weighted average markup has increased in the United States. Second, it summarizes and evaluates a set of industry studies that examine market power over long time horizons in specific settings. A theme that emerges from these industry studies is that technological advancements matter a great deal for the evolution of economic outcomes. By contrast, the studies do not point to weak antitrust enforcement as contributing to greater market power. The article concludes by outlining directions for future research.