I got some snippy responses, well one in particular, to my post on the future of international relations theory based on a reading of the tea leaves over the last year or so. And it made me realize that there is a fundamental divide between me (and I hope others) and rationalists on the issue of assumptions. I thought I’d write about and get some feedback. I’m sure that there is a literature and debate on this somewhere else, but I blog about things that I don’t really have time to look into. Isn’t that the point? (Although I would appreciate it more responsible people pointed me in the right directions…..).

It seems for rationalists that assumptions are statements that one makes to make the building of theoretical models easier.  It does not matter if they are true, only if they are useful. Assumptions in rationalism are just things you don’t touch. It is a synonym for elements of an argument that are not subjected to empirical analysis or testing. I guess this is a necessary evil to make formal models in particular work. Otherwise one can’t find equilibria and generate expectations of outcomes.

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