Abstract
Russell Hardin produced a body of work of great breadth and richness on essential subjects of the social sciences and political and moral philosophy: collective action, trust, utilitarian ethics, groups and conflict, institutions, and knowledge. The volume of output, the engagement with cross-cutting fields of scholarship and myriad subjects, and his at-times conversational mode of analysis make a succinct encapsulation difficult. In this introduction, we give a brief account of three main areas of Hardin’s work: his distinctive take on the moral and political philosophy of utilitarianism, his accounts of collective action and the nature of social life, and his account of the fundamental idea of trust and social capital.