Economics and Social Interaction is a fresh attempt to overcome the traditional inability of economics to deal with interpersonal phenomena that occur within the sphere of markets and productive organizations. It makes use of traditional economic concepts for understanding interpersonal events, while venturing beyond those concepts to give a better account of personalised interactions. In contrast to other books, Economics and Social Interaction offers the reader a rigorous effort at extending economic analysis to a difficult field in a consistent manner, sensitive to insights from other behavioural and social sciences. This collection represents an important contribution to a growing research agenda in the social sciences.