论文题目：THE ELLSBERG PARADOX AND RISK AVERSION:AN ANTICIPATED UTILITY APPROACH
作者：UZI SEGAL
内容简介：The Ellsberg paradox has puzzled economists and psychologists since its
presentation about twenty-five years ago (Ellsberg [1961]). The traditional
analysiso f decisionm akingu nderu ncertaintya ssumedt hat the decisionm aker's
preferenceso n prizes( representedb y his cardinalu tility function),t ogetherw ith
his belief relationo n events( representedb y his subjectivep robabilityf unction),
uniquelyd efine his preferenceso n lotteries( Ramsey [1931], von Neumanna nd
Morgenstern [1947], Savage [1954]). Non-expected utility theories such as
prospect theory (Kahneman and Tversky [1979]), Machina's functional [1982],
Chew's weighted utility [1983], and anticipated utility theory (Quiggin [1982],
Yaari[ 1984], Segal [1984]) also assumet hat a lotteryi s fully characterizedb y its
possible prizes and their corresponding probabilities. Ellsberg's problems
suggesteds ituationsn eedingm orei nformation