From the Wikipedia entry on Seldon:
Paul Krugman
At the 67th science-fiction world convention in Montreal, Paul Krugman, the Nobel Laureate in Economics, mentioned Hari Seldon. According to Krugman, his interest in economics began with Asimov’s Foundation novels, in which the social scientists of the future use ‘Psychohistory’ to attempt to save civilization. Since ‘Psychohistory’ in Asimov’s sense of the word does not exist, Krugman turned to economics, which he considered the next best thing.
http://en.wikipedia.org/wiki/Hari_Seldon
As I have said for a few years now, Paul Krugman should just stick to being wrong about economics.