Peter E. Earl There is no doubt that it is appropriate for a series on Modern Economic Thought to include a book on the recent development of economic analysis incorporating ideas from psychology. This book was designed to appear in 1987, 15 years after the publication of a now classic collection of essays in honor of George Katona (Strumpel et aI., 1972), who throughout the fifties and sixties had been tirelessly trying to persuade economists of the virtues of an infusion of psychology into their work. In the intervening 15 years there has been a considerable growth of interest along the...