John Nash (as in the Nash equilibrium), the american mathematician whose work with game theory earned him the Nobel prize in Economics, was the subject of the Oscar winning movie A Beautiful Mind (and was portrayed by none other than our very own Russel Crowe). The movie focuses both on his remarkable advances in mathematics and his struggle with paranoid schizophrenia.
A short clip from the movie: a trip to the pub can lead to a revolutionary 28 page doctoral dissertation:
Firms, Markets and Business Management 
Nash put some structure around how players in a “game” can optimize their outcomes. Therefore, it is a decision theory that depends on the mathematical model. In other words, it is the decision-making tool to help economists make decision under uncertain in competitation or not. Is it the only link to economy?
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