What finance theory is based on-- and much of economics is based on-- the idea that people want to maximize the expected utility of their wealth.

金融学理论建立在,并且很多经济学的都是建立在,人们希望能使自己对,财富的期望效用最大化这一基础上

耶鲁公开课 - 金融市场课程节选

Whether to gamble, based on efficient-- based on expected utility theory.

例如赌博,你们是注重效率呢,还是注重预期效用

耶鲁公开课 - 金融市场课程节选