Industrial economists tend to think of competition as occurring between atomic units called "firms." Theorists of organization tend to think about the choice among various kinds of organizational structures - what Langlois and Robertson (1995) call "business institutions." But few have thought...

Voices along the whole of the political spectrum are calling for heightened scrutiny of American information-technology companies, especially the Big Five of Amazon, Apple, Facebook, Google, and Microsoft. One of the principal themes of this uprising is that present-day antitrust policy, forged...