Existence of equilibrium in an abstract economy without $SS$-convexity
In this paper, we introduce the concept of $Δ$-convexity in an abstract economy with all choice sets being general topological spaces. We give a new generalization of the classical Yannelis-Prabhakar equilibrium existence theorem in abstract economies by relaxing $SS$-convexity to $Δ$-convexity.
math.GN↗