Imperfect Competition, Compensating Differentials and Rent Sharing in the U.S. Labor Market

Thibaut Lamadon, Bradley Setzler and Magne Mogstad

No 1583, 2019 Meeting Papers from Society for Economic Dynamics

Abstract: The goal of this paper is to quantify the importance of imperfect competition in the U.S. labor market by estimating the size of rents earned by American employers and workers from ongoing employment relationships. To this end, we construct matched employer-employee data by combining the universe of U.S. business and worker tax records for the period 2001-2015. Using this panel data, we provide two empirical findings on the role that firms play in the wage determination in the U.S. The first finding is that idiosyncratic productivity shocks to a firm transmit significantly to the earnings of its workers. Controlling for time-invariant firm and worker heterogeneity through a difference-in-differences strategy, we estimate that a 10 percent increase in the value added of a firm leads to a 1.4 percent increase in the earnings of incumbent workers. The second finding is that little of the variation in earnings is due to workers being employed in different firms. Estimating a two-way (worker and firm) fixed effect model, we find that firm effects explain no more than 3 percent of the variation in workers’ earnings. To interpret these two findings, we develop a model of the labor market where multiple employers compete with one another for workers who have heterogeneous preferences over non-wage job characteristics or amenities. These heterogeneous preferences give rise to imperfect competition and rents. The model suggests a significant amount of rents and imperfect competition in the U.S. labor market. Workers are, on average, willing to pay 14 percent of their wage to stay in the current jobs. Comparing these worker rents to those earned by employers suggests that total rents are divided relatively equally between firms and workers. The model also reveals that the finding of small firm effects do not imply that labor markets are competitive or that rents are negligible. Instead, firm effects are small because productive firms tend to have good amenities, which pushes down the wages that these firms have to pay. As a result, firms contribute much less to earnings inequality than what is predicted by the variance of firm productivity only.

Date: 2019
New Economics Papers: this item is included in nep-hrm
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Related works:
Journal Article: Imperfect Competition, Compensating Differentials, and Rent Sharing in the US Labor Market (2022)
Working Paper: Imperfect Competition, Compensating Differentials and Rent Sharing in the U.S. Labor Market (2019)
Working Paper: Imperfect competition, compensating differentials and rent sharing in the U.S. labor market (2019)
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Persistent link: https://EconPapers.repec.org/RePEc:red:sed019:1583

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