This paper investigates the existence of pure strategy, dominant strategy, and mixed strategy Nash equilibria in discontinuous games. We introduce a new notion of weak continuity, called weak transfer quasi-continuity, which is weaker than most known weak notions of continuity, including...

This paper is among the first to theoretically examine the relevance of price competition in the protection market by focusing on the competition between empires. By distinguishing absolute and differential protection rents, we first define coercive rivalry and price competition among empires...

While economic historians have stressed the importance of price competition in the protection market, theorists of conflictual activity have argued against the extrapolation of this form of competition in the protection market and favored competition through the quantity of conflictual effort....

This paper examines the relevance of price competition in the protection market in order to explain the different modes of empire-building. Our approach unravels the economic rationale of merchant empires which is not explicable with existing theoretical frameworks systematically eluding price...