New results on equilibria of abstract fuzzy economies

摘要

In this paper, we consider the model of an abstract fuzzy economy and we obtain new equilibrium theorems for the situations when the involved correspondences satisfy properties which are weaker than upper-semicontinuity. In our case, the constraint or preference correspondences are almost weakly upper semicontinuous or have the e-upper semicontinuous selection property. The obtained results either generalize or improve corresponding ones present in the literature.