I investigate a two-country non cooperative game where the status quo ante is asymmetric as one country is endowed with nuclear weapons while the other is not and is evaluating the opportunity of build up a nuclear arsenal. After identifying the conditions on payoffs such that the resulting...

A well established belief both in the game-theoretic IO and in policy debates is that market concentration facilitates collusion. We show that this piece of conventional wisdom relies upon the assumption of profit-seeking behaviour, for it may be reversed when firms pursue other plausible goals....