[영문]Some sociologists have recently argued that a major aim of sociological inquiry is to identify the mechanisms by which cause and effect relationships in the social world come about. This article argues that existing accounts of social mechanisms are problematic because they rest on either inadequately developed or questionable understandings of social action. Building on an insight increasingly common among sociological theorists?that action should be conceptualized in terms of social practices?I mobilize ideas from the tradition of classical American pragmatism to develop a more adequate theory of mechanisms. I identify three kinds of analytical problems the theory is especially well poised to address and then lay out an agenda for future research