Antitrust in the United States today is caught between its pursuit of technical rules designed to define and implement defensible economic goals, and increasing calls for a new antitrust “movement.” The goals of this movement have been variously defined as combating industrial concentration, limiting the economic or political power of large firms, correcting the maldistribution of wealth, control of high profits, increasing wages, or protection of small business. High output and low consumer prices are typically unmentioned. In the 1960s the great policy historian Richard Hofstadter lamented the passing of the antitrust “movement” as one of the “faded passions of American reform.” In its early history, he observed, antitrust had a powerful ...