Enrico Moretti of the University of California, Berkeley and the author of the New Geography of Jobs talks to EconTalk host Russ Roberts about the ideas in his book. Moretti traces how the economic success of cities and the workers who live there depends on the education of those workers. Moretti argues that there are spillover effects from educated workers--increased in jobs and wages in the city. He uses changes in the fortunes of Seattle and Albuquerque over the last three decades as an example of how small changes can affect the path of economic development and suggests a strong role for serendipity in determining which cities become hubs for high-tech innovation. The conversation concludes with Moretti making the case for increasing investments in education and research and development.