Drawing upon data from the largest cross-country study of labor market concentration to date, this paper analyzes the level of concentration of labor input markets in Europe and North America and provides a comparative perspective on employers' monopsony power. It explores the characteristics of...

We investigate the impact of labor market concentration on average wages and decompose it into its effects on new hires and incumbents, where incumbents are defined as individuals who were already employed in the same firm the year before. Using administrative data for France, we find that...

Mergers that increase labor market concentration can enhance firms’ labor market power or promote efficiency through post-merger labor reorganization. Using establishment-level employment data, we create a novel measure of the change in labor market concentration due to a merger. We find that...

The DOJ and FTC clarify the role of labor market power ("monopsony") in the 2023 draft merger guidelines. The draft states in Guideline 11 that the structural presumption threshold applies to labor market concentration, while also suggesting that a stricter threshold may be warranted in labor...

In this paper, we provide a new set of stylised facts on firm provision of on-the-job training and labor market competition. We exploit job ad texts taking a supervised machine learning approach to identify training offers. We find that around 20% of US job posts offer on-the-job training, with...

It is unknown how labor market concentration impacts employee health benefits. We combine data from the Medical Expenditure Panel Survey - Insurance/Employer Component with the Longitudinal Business Database for 2002-2019 to examine how labor market concentration affects contributions to plan...