Walras equilibrium in multiregional economic systems

Abstract

In the paper, existence and coalitional stability problems for Walras equilibrium in the models of multiregional economic systems are considered. Here, we continue investigations on extremal characterization of equilibrium allocations in non-classic market being a modification of the well-known Arrow-Debreu model. It is shown that strict autarchy and non-satiation conditions guarantee coincidence of fuzzy core and Valras plans of the economies under consideration. By combining this coincidence result and conditions providing nonemptyness of the fuzzy core in multiregional systems we obtain a new equilibrium existence theorem without technological boundedness assumption.