Dr. William Lazonick is an economist who studies innovation and competition in the global economy, who has recently been focusing on the corrosive role of stock buybacks. We invited him on to explain why this widespread financial practice is such a bad idea in his eyes, and in return were provided with a comprehensive model of what makes a successful economy. In short, Lazonick believes that no economic system can survive without "the firm," the kind of old school corporate organization that maintained a stable a social contract with its workers, sometimes over the course of an entire lifetime. In Lazonick's view, all economic growth and progress comes down to the ability of the firm to honor that social contract, which means he traces the slump we're in to the death of this tradition. But the question is, what caused us to become eternally itinerant workers in search of global opportunties, hopping from job to job every few years? Lazonick's got that answer, too. He points to a radical transformation of our financial and economic system that came to a head in the 1970s.