 (Realists do not say cooperation "never" happens, just that it is not the norm; it is a difference of degree).Social constructivism encompasses a broad range of theories that aim to address questions of ontology, such as the structure-and-agency debate, as well as questions of epistemology, such as the "material/ideational" debate that concerns the relative role of material forces versus ideas.Constructivism is not a theory of IR in the manner of neo-realism, but is instead a social theory which is used to better explain the actions taken by states and other major actors as well as the identities that guide these states and actors.