Carl Szabo, general counsel at NetChoice, an industry group whose members include Amazon, Google and Facebook, said Ms. Khan’s views “could throw into question American innovation, economic exceptionalism, and consumer happiness for decades to come.”
Ms. Khan has acknowledged that some markets, particularly in the digital space, might naturally be dominated by a handful of online firms because of their size and scale. In those circumstances, she has argued, the government should consider placing structural limits on the lines of business in which a firm can engage, or perhaps regulate online platforms directly as “common carriers” as it does with public utilities.