We prove existence and uniqueness of non-autarkic equilibria in bilateral oligopoly assuming only that preferences are binormal and satisfy a weakened version of gross substitutes. We permit complete heterogeneity of preferences and our analysis exploits the fact that payoffs depend only on own...

This paper analyses strategic trade within pure exchange economies. In the tradition of the ‘Shapley-Shubik’ case, the signals agents send to the markets are aggregated into market prices, proceeding which net trades are determined via a distribution mechanism dependent on both individual...