Welcome to BIG, a newsletter on the politics of monopoly power. If you’re already signed up, great! If you’d like to sign up and receive issues over email, you can do so here.In 1964, historian Richard Hofstadter wrote a famous sentence about the importance of antitrust law. “Anybody who knows anything about the conduct of American business”, he noted, “knows that the managers of the large corporations do their business with one eye constantly cast over their shoulders at the antitrust division....