Opinion: The current approach to M&A antitrust review is fundamentally broken, allowing for unchecked market concentration that stifles innovation and harms consumers. Regulators are falling behind, and the economic consequences are becoming undeniable.
Key Takeaways
- The Federal Trade Commission (FTC) and Department of Justice (DOJ) need to significantly lower the thresholds for scrutinizing mergers, particularly in technology and healthcare sectors.
- New legislation is necessary to explicitly define and penalize “killer acquisitions,” where dominant firms buy nascent competitors to eliminate future threats.
- Courts must adopt a more expansive view of potential competition, moving beyond traditional market definitions to consider innovation and data power.
- Increased funding and staffing for antitrust agencies are critical to effectively challenge large, complex transactions and litigate cases.
- Companies contemplating significant mergers should anticipate a longer, more intensive review process and prepare strong justifications for pro-competitive benefits.
The Illusion of Competition: How Current Policy Fails
For too long, antitrust enforcement has operated under a flawed premise: that market concentration is benign until it reaches an extreme, undeniable level. This perspective has enabled a steady march towards oligopoly across critical industries, from digital advertising to pharmaceuticals. The evidence is compelling. A 2024 report from the Economic Policy Institute (EPI) highlighted that four decades of lax enforcement have contributed to declining wage growth and increasing prices for consumers in concentrated markets. The standard for intervention, often relying on the Herfindahl-Hirschman Index (HHI) and narrow market definitions, simply doesn’t capture the nuanced ways dominant firms exert power in the 21st century. For instance, how do you measure market power when the “product” is free, like a social media platform, but the data collected is immensely valuable?
We’ve seen this play out repeatedly. Consider the series of acquisitions by major tech companies over the past decade. Many of these deals, individually small, collectively cemented dominance and eliminated potential future rivals. Regulators often approved these transactions with minimal conditions, failing to foresee the cumulative impact. This isn’t just about price fixing. It’s about control over distribution channels, access to data, and the ability to dictate terms for smaller players. The current policy framework, rooted in a 20th-century understanding of industrial economics, struggles to address these modern challenges. We need a fundamental re-evaluation, not just tweaks to existing guidelines.
“Killer Acquisitions” and the Stifling of Innovation
One of the most insidious aspects of unchecked M&A activity is the phenomenon of “killer acquisitions,” where established giants buy promising startups not to integrate their technology, but to neutralize a competitive threat. This practice chokes off innovation at its source. A study published in the Journal of Political Economy in 2020 (University of Chicago Press) provided empirical evidence that incumbent firms acquire potential competitors at a higher rate when those targets pose a greater threat to the incumbent’s core business. The acquired entity’s products are often subsequently shelved or deprioritized. This is not how a dynamic, competitive economy should function.
The implications for startups and venture capital are deep. Why invest in a bold new technology if its ultimate fate is to be swallowed and suppressed by an incumbent? This dynamic creates a chilling effect on entrepreneurship, diverting talent and capital away from truly disruptive ideas. The Federal Trade Commission (FTC) has begun to acknowledge this issue, but enforcement actions remain rare and often come too late. For example, the FTC’s 2021 lawsuit against a major social media company, alleging anticompetitive acquisitions of photo-sharing and messaging apps, came years after the deals closed, making divestiture a complex and often insufficient remedy. We need proactive measures, a significant shift in the burden of proof for dominant firms seeking to acquire smaller innovators.
The Path Forward: Reinvigorating Antitrust Enforcement
To truly address market concentration, we need a multi-pronged approach that strengthens enforcement, updates legal frameworks, and helps regulators. First, the antitrust agencies, specifically the FTC and the Department of Justice’s Antitrust Division, require substantial increases in funding and personnel. As of 2025, the combined budgets for these agencies are still dwarfed by the legal teams of the corporations they regulate. This resource disparity makes it incredibly difficult to mount effective challenges against complex, multi-jurisdictional mergers. According to a 2024 analysis by the American Bar Association (ABA Antitrust Law Journal), the average cost of litigating a significant merger challenge can run into tens of millions of dollars, a figure that strains agency budgets.
Second, Congress must enact new legislation that explicitly targets the issues of market power in digital markets and addresses the problem of killer acquisitions. Simply applying old statutes to new economic realities isn’t enough. We need clearer guidelines for what constitutes anticompetitive behavior in data-driven markets and lower thresholds for merger challenges in concentrated industries. Senator Amy Klobuchar’s 2025 “Competition and Antitrust Enforcement Reform Act” (S. 225) (which is currently under review in the Senate Judiciary Committee) proposes several such changes, including increased merger filing fees for large transactions and a lower legal standard for blocking certain mergers. While its passage is uncertain, it represents a recognition of the problem.
Finally, the judiciary must evolve its understanding of competition. Courts need to recognize that competition is not solely about price, but also about innovation, quality, and consumer choice. This means moving beyond rigid market definitions and considering the long-term impact of consolidation on nascent industries. A recent decision by the Ninth Circuit Court of Appeals in 2025, upholding a lower court’s blocking of a vertical merger in the semiconductor industry, demonstrated a promising, albeit isolated, willingness to consider broader competitive harms beyond immediate price effects. This signals a potential shift, but consistency across all circuits is vital.
The current system allows powerful companies to consolidate their influence, often at the expense of genuine competition and consumer welfare. We must demand a more proactive, strong approach to M&A antitrust review.
Conclusion
The era of permissive M&A antitrust review needs to end. A renewed commitment to challenging market concentration through legislative reform, increased agency resources, and a modernized judicial perspective is essential to foster innovation and ensure a truly competitive economy for all. Our future depends on ensuring fair competition and preventing market dominance from stifling progress, particularly as tech breakthroughs redefine our future.
What is the primary goal of M&A antitrust review?
The primary goal of M&A antitrust review is to prevent mergers and acquisitions that would substantially lessen competition in any line of commerce, thereby protecting consumers from higher prices, reduced quality, or less innovation.
Which government agencies are responsible for M&A antitrust review in the United States?
In the United States, the two primary federal agencies responsible for M&A antitrust review are the Federal Trade Commission (FTC) and the Department of Justice (DOJ) Antitrust Division.
What is a “killer acquisition” in the context of antitrust?
A “killer acquisition” refers to a situation where an incumbent, dominant firm acquires a nascent or potential competitor primarily to eliminate a future competitive threat, rather than to integrate its technology or products for pro-competitive reasons.
How has market concentration changed over the past few decades?
Over the past four decades, many industries have seen a significant increase in market concentration, meaning a smaller number of firms control a larger share of the market, which critics argue is due in part to lax M&A antitrust enforcement.
What role do courts play in M&A antitrust enforcement?
Courts play a critical role in M&A antitrust enforcement by reviewing challenges brought by the FTC or DOJ, interpreting antitrust laws, and in the end deciding whether a proposed merger should be blocked or allowed to proceed.
