We introduce the notion of an outcome space, in which strategic interactions are embedded. This allows us to investigate the idea that one strategic interaction might be an expanded version of another interaction. We then characterize the Nash equilibria arising in such extensions and...

We provide a very different way to think about how consensus may arise. We deliberately skimp on the micro-processes of persuasion usually emphasized in constructivist accounts, instead highlighting the structural aspects of the cross-national networks through which experts communicate with each...