Traditional ecomics treats the defining subjective properties of ecomic agents (tastes, preferences, demands, goals and perceptions) as if they are determined independently of individual and collective relations with other agents. This collection of essays reflects the increasingly common view that ecomics cant continue to disregard all ecomic phemena inconsistent with this conception. The volume is especially concerned with the idea of intersubjective influences on market outcomes. A team of expert international contributors have been brought together to address the question of intersubjectivity from a variety of perspectives. Using methods of description and analysis they explore the structures and effects of concrete interdependencies between individual subjectivities engaged in ecomic activity, and develop conceptual and analytical tools for this task. Many of the essays are interdisciplinary in scope and in addition to ecomics the book should provide valuable lessons in psychology, sociology, social theory, philosophy, political science and history.