The research hub
Research & References
Peer-reviewed studies, government reports, and investigative journalism on what private equity ownership does to companies. Findings that cut against the site's name are included on purpose.
Academic & Peer-Reviewed Research
The Dark Side of Private Equity
Anonymous (Senior Partner, International Law Firm). University of Chicago Business Law Review, Online Edition, 2026.
Argues that PE's leveraged buyout model externalizes significant costs to workers, patients, consumers, and communities. Notes PE funds control $9.4 trillion in assets including ~11,500 companies employing 11 million American workers. Links PE ownership to higher nursing home mortality, lower staffing, increased ER adverse events, and $15 billion in annual environmental cleanup costs. Proposes leverage-indexed insurance, minimum staffing standards, and ownership-linked disclosure reforms.
Private Equity Acquisition of Hospitals and Patient Outcomes
Gupta A, Howell S, Yannelis C, Gupta A. Journal of the American Medical Association (JAMA), 2023.
Studied 662,516 hospitalizations at 204 PE-acquired hospitals vs. matched controls. Found PE acquisition associated with a 25.4% increase in hospital-acquired adverse events, including falls and central line infections, with increased in-hospital mortality among Medicare beneficiaries.
Does Private Equity Investment in Healthcare Benefit Patients? Evidence from Nursing Homes
Gupta A, Howell S, Yannelis C, Gupta A. National Bureau of Economic Research (NBER) Working Paper #28474, 2021.
Analysis of 18,485 nursing homes found PE ownership led to a 10% increase in short-term mortality among Medicare patients. The study identified a 3% decrease in hours per patient day for nursing staff and an 8.7% decrease in compliance with Medicare care standards.
Private Equity Buyouts in Healthcare: Who Wins, Who Loses?
Appelbaum E, Batt R. Center for Economic and Policy Research (CEPR), 2020.
Comprehensive review of PE ownership across healthcare sectors including physician practices, hospitals, nursing homes, and behavioral health. Documents how financial engineering techniques like leveraged buyouts and dividend recapitalizations extract value while shifting risk onto operating companies.
The Effect of Private Equity on Veterinary Prices
Multiple researchers. Various working papers, 2023-2024, 2023.
Several studies have examined the 30-60% price increases at veterinary clinics following PE acquisition. Mars (through VCA and Banfield), JAB Holding (through NVA), and other firms now control over 25% of veterinary revenue in the US, with the consolidation trend accelerating since 2019.
Private Equity Acquisition and Hospital Asset Decline
Gupta A, Howell S, Yannelis C, et al.. Journal of the American Medical Association (JAMA), 2024.
Follow-up JAMA study (July 2024) found hospital assets decreased 24% in the two years following PE acquisition. The asset-stripping effect (sale-leasebacks, deferred maintenance, reduced capital investment) explains downstream quality deterioration and the financial crises at PE-owned hospital systems like Steward Health Care and Prospect Medical.
Private Equity and Emergency Department Staffing and Patient Deaths
Multiple researchers. Annals of Internal Medicine, 2024.
PE-acquired hospitals cut emergency department salary expenditures by 18.2% after acquisition. Patient deaths in EDs rose at PE-owned hospitals compared to matched controls. Harvard Medical School summary: 'Deaths rose in emergency rooms after hospitals were acquired by private equity firms.'
Private Equity, Consumers, and Competition: Evidence from the Nursing Home Industry
Gandhi A, Song Y, Upadrashta P. National Bureau of Economic Research (NBER) Working Paper #34306, 2025.
Analysis finds PE-owned nursing homes compete aggressively where market competition is strong, but exploit monopoly power where competition is weak, worsening outcomes precisely where residents have the fewest alternatives. Authors recommend pro-competitive policies that can 'mitigate or even reverse PE's potentially adverse consequences' on residents.
The Operational Consequences of Private Equity Buyouts: Evidence from the Restaurant Industry
Bernstein S, Sheen A. Review of Financial Studies, 2016.
Using health inspection records from restaurant chain buyouts (2002–2012), finds that store-level operational practices improve post-buyout: restaurants become cleaner and safer, with fewer health violations. The effect is stronger in chain-owned stores than franchised locations and is especially pronounced when the PE partner has prior industry experience. Also found reduced employee headcount and lower menu prices post-acquisition.
Private Equity Buyouts and Workplace Safety
Cohn JB, Nestoriak N, Wardlaw M. Review of Financial Studies, 2021.
Finds a large, persistent decline in establishment-level workplace injury rates following PE buyouts of publicly-traded U.S. firms. OSHA violations fall and injury rates drop significantly post-acquisition. The safety improvement correlates with higher probability of IPO exit, suggesting PE firms have direct financial incentive to improve worker safety.
Barbarians at the Store? Private Equity, Products, and Consumers
Fracassi C, Previtero A, Sheen A. Journal of Finance, 2022.
PE-acquired consumer product firms grow sales roughly 50% more than matched controls after buyout. This growth is not driven by price increases on existing products (which rise only ~1%); instead it comes from new product launches and geographic expansion. Results suggest PE eases financial constraints and provides operational expertise, countering the narrative that PE simply squeezes existing operations.
Do Private Equity Owned Firms Have Better Management Practices?
Bloom N, Sadun R, Van Reenen J. American Economic Review (Papers & Proceedings), 2015.
Double-blind management survey across multiple countries finds PE-owned firms score better than government, family-owned, and privately-held firms on management practice quality, particularly in monitoring (lean manufacturing, continuous improvement) and people management. PE-owned firms showed the fastest management practice improvement of any ownership type among firms held at least three years.
Government & Regulatory Reports
Private Equity Roll-ups in Health Care
Federal Trade Commission. FTC Policy Report, 2024.
FTC analysis of how PE firms use serial acquisitions ('roll-ups') to consolidate healthcare markets including dental, dermatology, ophthalmology, and gastroenterology. Documents how roll-ups can reduce competition, raise prices, and lower quality of care while avoiding antitrust scrutiny.
Corporate Investors in Primary Care
Physicians Advocacy Institute, Avalere Health. PAI-Avalere Research Report, 2023.
Found that corporate entities (including PE firms) owned 52.1% of physician practices by January 2023, up from 35.5% in January 2019. PE-specific acquisitions of physician practices grew by 78% from 2019-2023.
Antitrust and Private Equity Roll-Ups
U.S. Senate Budget Committee. Congressional Hearing Testimony, 2024.
Bipartisan Senate inquiry into PE-driven consolidation across multiple sectors. Testimony documented how roll-up acquisitions in industries from veterinary care to manufactured housing have led to market concentration and consumer harm.
Investigative Reporting
When Private Equity Takes Over a Nursing Home
The New Yorker. Investigative Feature, 2022.
Long-form investigation into how PE-owned nursing homes prioritize financial returns over patient care, examining specific cases where cost-cutting measures led to understaffing and adverse patient outcomes.
Your Pet's Vet Is Probably Owned by a Multinational Private Equity Firm
The New York Times. Business Investigation, 2023.
Documented the rapid PE consolidation of veterinary clinics, showing how acquisitions have driven up costs for pet owners while clinicians report increased pressure to upsell services and reduce time per appointment.
Private Equity is Ruining Health Care, Retail, and Everything Else
The Atlantic. Feature Article, 2023.
Broad examination of how PE-driven business models prioritize short-term cash extraction across consumer industries, with case studies in retail, healthcare, housing, and food service.
Youth Sports' Private Equity Problem
Wall Street Journal, ESPN. Sports Business Reporting, 2024.
Reports on PE firms acquiring youth sports leagues and tournament organizations, leading to increased registration fees, pay-to-play models, and concerns about prioritizing revenue over child development and accessibility.
RV Park Residents Face Steep Rent Hikes After PE Acquisitions
Bloomberg, MHAction. Housing Investigation, 2023.
Investigation into how PE-backed REITs like Sun Communities and ELS have acquired hundreds of RV parks and manufactured home communities, with residents reporting 40-80% rent increases and deteriorating maintenance after acquisition.
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