Woody Powell is a Stanford sociologist who studies the economic culture of cities. Recently, he and his research team studied why certain regions—Boston, San Francisco, San Diego—became leaders in biotechnology while others with a similar concentration of scientific and corporate talent—Los Angeles, Philadelphia, New York—did not. The answer they found was what Powell describes as the anchor-tenant theory of economic development. Just as an anchor store will define the character of a mall, anchor tenants in biotechnology, whether it’s a company like Genentech, in South San Francisco, or a university like M.I.T., in Cambridge, define the character of an economic community. They set the norms. The anchor tenants that set norms encouraging the free flow of ideas and collaboration, even with competitors, produced enduringly successful communities, while those that mainly sought to dominate did not. (via the New Yorker)