I am currently reading Bruce Bueno de Mesquita's book "Prediction" (ebook downloaded from Random House on my iPad). In this video he explains 'game theory' - and how it can be used to predict political behaviour.
In addition to being a Professor of Politics at New York University, he has been consulted by the US Government.
I found this presentation, and the book, to be engaging - which is quite an achievement - as much of the literature on Game Theory looks too mathematical to be attractive to me. I think after this I might try dipping into the maths a little!