Economics, like most other social sciences, is not a pure discipline. Indeed, it has been enhanced by the fact that there is so much overlap between it and the related fields of business, industrial relations, political science, social psychology, and sociology. This book is the first attempt to explain how work in economics has influenced and benefited from a merging of economic analysis with the research practices of these related fields of study. With contributions from leading economists from around the world, it demonstrates how economics is leading the way toward a more unified social science.