Very nice article. It gives a good summary of the insights gained by Nash Equilibrium, and the limitations of the concept. In Economics, it is typical to sear

Very nice article. It gives a good summary of the insights gained by Nash Equilibrium, and the limitations of the concept. In Economics, it is typical to search for stricter conditions for equilibrium than Nash equilibrium, which avoid the issues of non-uniqueness and other issues. For example, when designing an auction, one might look for an auction with a "dominant strategy equilibrium". In such an equilibrium, there is a best strategy for a given player no matter what the other players do. E.g. in a second price auction, you should always bet your true valuation of the object, no matter what the strategies of the other players are.