Where do the entrepreneurs get their questions and answers? Academic psychology — with an occasional assist from sociology and, increasingly of late, economics — is a wholesale warehouse of ideas. Since the 1960s, for example, self-esteem has been a potent conceptual tool for defining and explaining all manner of individual and social ills. Arising from academic social psychology and not intended for retail channels, it found its way into the conceptual toolkits of educationists, and from there dispersed widely. Some academics, particularly in schools of education, became retailers in their own right. Other retailers, less “expert,” followed, spreading the word, creating exercises, workbooks and other forms of “bibliotherapy,” workshops, programs, and other devices for enhancing the self-esteem of schoolchildren, bankers, nurses, and everybody else. The concept of narcissism has not yet spawned quite so vast an arsenal of techniques for improving self and others, but there is no reason it could not. For the enterprising, now might be a good time to jump in.