Econom/c Theory 9 Springer-Verlag 1993 On the continuity of expected utility*

Summary. We provide necessary and sufficient conditions for weak (semi)continuity of the expected utility. Such conditions are also given for the weak compactness of the domain of the expected utility. Our results have useful applications in cooperative solution concepts in economies and games with differential information, in noncooperat ive games with differential information and in principal-agent problems.