Ontology
Structure and agency forms an enduring debate in social theory: "Do social structures determine an individual's behaviour or does human agency?" In this context 'agency' refers to the capacity of individuals to act independently and make free choices, whereas 'structure' refers to factors which limit or affect the choices and actions of individuals (such as social class, religion, gender, ethnicity, and so on). Discussions over the primacy of structure or agency relate to the very core of social ontology ("What is the social world made of?", "What is a cause in the social world, and what is an effect?"). One attempt to reconcile postmodern critiques with the overarching project of social science has been the development, particularly in Britain, of critical realism. For critical realists such as Roy Bhaskar, traditional positivism commits an 'epistemic fallacy' by failing to address the ontological conditions which make science possible: that is, structure and agency itself.
Read more about this topic: Philosophy Of Social Science