We examine overconfidence among equity mutual fund managers. While overconfidence has been extensively documented among retail investors, evidence from professional investors is scarce. Consistent with theories of overconfidence, we find that fund managers trade more after good past performance....

The purpose of this paper is to explain the main social and economic facts concerning obesity in a way that substantially improves upon existing economic theory. In contrast to existing theory, a number of recent health science writers have explained persuasively that weight gain or loss is not...