Private Equity and Workers: Modeling and Measuring Monopsony, Reallocation, and Trust

86 Pages Posted: 31 Mar 2025 Last revised: 22 Apr 2025

See all articles by Kyle Herkenhoff

Kyle Herkenhoff

University of Minnesota - Minneapolis

Josh Lerner

Harvard Business School - Finance Unit; Harvard University - Entrepreneurial Management Unit; National Bureau of Economic Research (NBER); European Corporate Governance Institute (ECGI); Harvard University - Private Capital Research Institute

Gordon M. Phillips

Dartmouth College - Tuck School of Business; National Bureau of Economic Research (NBER)

Francisca Rebelo

Boston College, Department of Finance

Benjamin Sampson

Stanford University

Date Written: January 10, 2025

Abstract

We measure the real effects of private equity buyouts on worker outcomes by building a new database that links transactions to matched employer-employee data in the United States. To guide our empirical analysis, we derive testable implications from three theories in which private equity managers alter worker outcomes: (1) exertion of monopsony power, (2) breach of trust of implicit contracts with workers, and (3) efficient reallocation of workers across plants. We do not find any evidence that private equity-backed firms vary wages and employment based on local labor market power proxies. Moreover, layoffs and wage losses are very similar across occupation and employee characteristics, suggesting a rejection of the breach of trust hypothesis. We find strong evidence that private equity managers downsize less productive plants relative to productive plants while simultaneously reallocating high-wage workers to more productive plants. We conclude that post-buyout employment and wage dynamics are consistent with professional investors providing incentives to increase productivity and monitor the companies in which they invest.

Keywords: Private equity, employment, wages, monopsony, market power, Productivity

JEL Classification: G20, G34, L1

Suggested Citation

Herkenhoff, Kyle and Lerner, Josh and Phillips, Gordon M. and Rebelo, Francisca and Sampson, Benjamin, Private Equity and Workers: Modeling and Measuring Monopsony, Reallocation, and Trust (January 10, 2025). HKU Jockey Club Enterprise Sustainability Global Research Institute Paper No. 2025/034, Available at SSRN: https://ssrn.com/abstract=5193674 or http://dx.doi.org/10.2139/ssrn.5193674

Kyle Herkenhoff

University of Minnesota - Minneapolis ( email )

110 Wulling Hall, 86 Pleasant St, S.E.
308 Harvard Street SE
Minneapolis, MN 55455
United States

Josh Lerner

Harvard Business School - Finance Unit ( email )

Boston, MA 02163
United States
617-495-6065 (Phone)
617-496-7357 (Fax)

HOME PAGE: http://www.people.hbs.edu/jlerner/

Harvard University - Entrepreneurial Management Unit

Cambridge, MA 02163
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

European Corporate Governance Institute (ECGI) ( email )

c/o the Royal Academies of Belgium
Rue Ducale 1 Hertogsstraat
1000 Brussels
Belgium

Harvard University - Private Capital Research Institute ( email )

114 Western Ave
Allston, MA 02134
United States

Gordon M. Phillips (Contact Author)

Dartmouth College - Tuck School of Business ( email )

Hanover, NH 03755
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Francisca Rebelo

Boston College, Department of Finance ( email )

Chestnut Hill, MA
United States

Benjamin Sampson

Stanford University ( email )

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