Antitrust law is the primary legal tool the U.S. uses to prevent companies from becoming too powerful. But the tools we have were forged in the early 20th century, and they are increasingly ill-equipped to handle the digital monopolies of the 21st.
The core framework, the Sherman Act of 1890, was designed to break up physical monopolies like Standard Oil and AT&T. It focuses heavily on “consumer welfare,” primarily defined as short-term price effects. If a merger doesn’t immediately raise prices for consumers, regulators have historically allowed it.
This narrow focus has allowed massive consolidation in sectors where the product is “free” to the user, like social media and search engines. The cost isn’t paid in dollars; it’s paid in privacy, data extraction, and the stifling of innovation.
The Consumer Welfare Standard
By focusing almost exclusively on short-term price effects, antitrust enforcement missed the broader harms of monopoly power: suppressed wages, reduced quality, and the political influence of massive corporate entities.
Furthermore, the legal process for breaking up a company is incredibly slow, expensive, and rare. Regulators often settle for behavioral remedies (promising to play fair) rather than structural remedies (breaking the company up), which are notoriously difficult to enforce.
The limits of current antitrust tools have sparked a bipartisan push for reform. New proposals focus on “structural presumptions” (blocking mergers above a certain size automatically), shifting the burden of proof to the merging companies, and updating the laws to account for data monopolies and platform power.
When following antitrust news, look beyond the headline price effects. Ask whether the merger will concentrate too much power in the hands of a few executives, suppress worker wages, or stifle future innovation. Antitrust isn’t just about the price of gas; it’s about the structure of economic and political power in a democracy.