equilibrium; non-ordered preferences; equilibrium manifold; natural projection; demand functions. JEL-classification: C62, D11, D … token preferences that are not even convex [13]. Using the equilibrium manifold and natural projection approach of Balasko … element in our approach is that the equilibrium manifold and its projection map (the natural projection) have simple …

The natural projection plays a fundamental role to understand the behavior of the Walrasian economies. In this paper … differential characteristics of the excess utility function and then, we extend the method of the natural projection as suggested …