Big Tech

Across the economy, monopolists of all kinds are engaged in “conditional dealing.” This is the practice of unilaterally offering benefits and penalties, or bribes and threats, to induce trading partners to refrain from competing against the monopolist or from dealing with its rivals. Pharma giants offer discounts conditioned on “loyalty,” agricultural monopolists impose “exit penalties” for switching to rivals, and social networks offer...

As U.S. competition authorities ponder whether age-old antitrust laws should be modernized to apply to tech giants, a first-order question is: What existing antitrust laws apply to their conduct? A formerly formida­ble tool that has been defanged through lax enforcement is the Robinson–Patman Act (RPA). Passed by Congress in 1936, the RPA was drafted in response to a growing public concern that large chain stores were squeezing out small businesses....