“…It turns out that s(|, v s )=(1Âm(|))(1Â4+2v s Â3) and b(|, v b )= (1Âm(|))(1Â12+2v b Â3) is an equilibrium, which Chatterjee and Samuelson [7] call the``linear equilibrium''. A great variety of equilibria exist, including equilibria in which strategies are solutions to differential equations (Satterthwaite and Williams [31]) as well as equilibria in which strategies are discontinuous (Leininger, Linhart, and Radner [17]). The linear equilibrium, however, among all equilibria, maximizes total expected gains from trade.…”