Key Takeaways
- • Economists used auction theory to demonstrate that major private equity firms engaged in unlawful collusion to suppress bidding prices in eight litigated multibillion-dollar leveraged buyout transactions, resulting in shareholder losses approaching $12 billion.
- • A rare class-action lawsuit succeeded by applying game theory analysis to show how private equity firms strategically coordinated to "dominate and control" the largest LBO market, artificially depressing acquisition prices below competitive levels.
- • The collusion directly harmed not just wealthy shareholders but also retirement funds and mutual funds held by ordinary investors, highlighting the broad retail exposure to institutional bid-rigging schemes.
- • Auction theory predicts that competitive markets should drive prices upward until only one bidder remains; the deviation from this pattern in these eight transactions provided quantifiable economic evidence of anti-competitive behavior.
- • The case, detailed in "Masters of the Universe: Bid Rigging By Private Equity Firms in Multibillion Dollar LBOs" published in the University of Cincinnati Law Review, represents a significant enforcement victory demonstrating that private equity firms themselves can pose material risk to shareholder value.
Summary
A landmark class-action lawsuit has exposed systematic bid-rigging by major private equity firms in multibillion-dollar leveraged buyout transactions. According to research led by California State University, Northridge business law professor Melanie Stallings Williams and co-authored with Christopher M. Burke (Scott & Scott), Stephanie Hackett (Scott & Scott), David W. Mitchell (Robbins, Geller Rudman & Dowd LLP), and Simon J. Wilke (dean of faculty of business and economics at Monash University), private equity firms unlawfully colluded to suppress acquisition prices across eight significant LBO transactions. Economic analyses quantify the cost to shareholders from this collusion at approximately $12 billion.
The case is notable for its methodological rigor: plaintiffs employed auction theory—a branch of game theory that measures strategic interaction between rational decision makers—to demonstrate the collusion. Under auction theory principles, a competitive market should produce price escalation until only a single bidder remains. The deviation from this theoretical prediction in these eight transactions provided empirical evidence of anti-competitive coordination among private equity firms intent on "dominating and controlling" the largest LBOs in the United States.
The practical impact extends far beyond wealthy investors. As Professor Williams emphasized, the affected shareholders include retirement funds and mutual funds held by ordinary investors—pension beneficiaries and retail investors whose financial security depended on fair auction processes. The collusion thus represents a transfer of wealth from the broad investor base to participating private equity firms through artificially suppressed acquisition prices.
The research, published in the University of Cincinnati Law Review under the title "Masters of the Universe: Bid Rigging By Private Equity Firms in Multibillion Dollar LBOs," underscores that private equity firms themselves can constitute a material risk factor in leveraged transactions. While LBOs inherently carry operational and financial risks, this case demonstrates that governance and competitive integrity risks warrant equal scrutiny from institutional investors and fiduciaries evaluating private equity exposure.
The case is notable for its methodological rigor: plaintiffs employed auction theory—a branch of game theory that measures strategic interaction between rational decision makers—to demonstrate the collusion. Under auction theory principles, a competitive market should produce price escalation until only a single bidder remains. The deviation from this theoretical prediction in these eight transactions provided empirical evidence of anti-competitive coordination among private equity firms intent on "dominating and controlling" the largest LBOs in the United States.
The practical impact extends far beyond wealthy investors. As Professor Williams emphasized, the affected shareholders include retirement funds and mutual funds held by ordinary investors—pension beneficiaries and retail investors whose financial security depended on fair auction processes. The collusion thus represents a transfer of wealth from the broad investor base to participating private equity firms through artificially suppressed acquisition prices.
The research, published in the University of Cincinnati Law Review under the title "Masters of the Universe: Bid Rigging By Private Equity Firms in Multibillion Dollar LBOs," underscores that private equity firms themselves can constitute a material risk factor in leveraged transactions. While LBOs inherently carry operational and financial risks, this case demonstrates that governance and competitive integrity risks warrant equal scrutiny from institutional investors and fiduciaries evaluating private equity exposure.
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