Everyone knows the stereotype of a private-equity buyout. First come big layoffs, then streamlining to boost profits, and finally a sale that enriches the firm’s partners.
The reality is far more nuanced, finds a first-of-its kind study mapping the career fates of 2.5 million US workers at 3,600 firms purchased by private-equity (PE) companies over two decades. Researchers tracked workers at companies that were bought out by PE firms for three years, and compared their fates to workers at comparable firms that weren’t bought out.
On the surface, they found that employees working at bought-out companies are more likely to leave their jobs than their non-buyout counterparts, and more likely to become unemployed and suffer wage cuts—earning almost 18% less three years after a deal. However, many employees move on to jobs with similar pay.
Contrary to the slash-and-burn image of PE, buyouts bring both “good and challenging aspects,” says Lerner, the Jacob H. Schiff Professor of Investment Banking at Harvard Business School. The findings offer a fresh way to think about today’s PE industry and its effect on labor markets.
Lerner wrote Private Equity and Workers: Measuring Monopsony, Implicity Contracts, and Efficient Reallocation with Kyle Herkenhoff, a professor at the University of Minnesota; Gordon M. Phillips, a professor at the Tuck School of Business at Dartmouth; Benjamin Sampson, a doctoral student at Stanford University; and Boston University lecturer Francisca Rebelo.
They set out to examine some common stereotypes of an industry that has grown 10-fold since 2008, chiefly that PE investors treat workers in targeted markets unfairly. Instead, they found PE firms stimulate productivity through a series of steps, which may include the movement of personnel and changing incentives.
Tracking reorganized companies
Twenty years of data from the Internal Revenue Service and the US Census Bureau allowed the authors to trace thousands of individuals and facilities—such as factories, warehouses, and other business sites—at acquired firms and compare them to people and like facilities that weren’t part of a leveraged buyout.
Inside the research
The researchers matched workers and facilities from acquired companies with a control group, using government data from 1993-2013. They analyzed:
- 2.5MWorkers from acquired companies
- 3.6kAcquired companies
- 33%Share of sample in manufacturing, followed by 14% in wholesale trade
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Private Equity and Workers: Modeling and Measuring Monopsony, Implicit Contracts, and Efficient Reallocation
Herkenhoff, Kyle, Josh Lerner, Gordon M. Phillips, Francisca Rebelo, and Benjamin Sampson. "Private Equity and Workers: Modeling and Measuring Monopsony, Implicit Contracts, and Efficient Reallocation." Harvard Business School Working Paper, No. 25-046, March 2025. (Revised June 2025.)