...It was one of the more irony-laden incidents in the history of celebrity social scientists. While in Sweden to receive a $50,000 academic prize as political science professor of the year, Harvard’s Robert D. Putnam, a former Carter administration official who made his reputation writing about the decline of social trust in America in his bestseller Bowling Alone, confessed to Financial Times columnist John Lloyd that his latest research discovery—that ethnic diversity decreases trust and co-operation in communities—was so explosive that for the last half decade he hadn’t dared announce it “until he could develop proposals to compensate for the...
