ECONOMIC GROWTH CENTER YALE UNIVERSITY P.O. Box 208269 27 Hillhouse Avenue New Haven, CT 06520-8269 CENTER DISCUSSION PAPER NO. 774 AN OUTCOME-ORIENTED THEORY OF CHOICE AND EMPIRICAL PARADOXES IN EXPECTED UTILITY THEORY Fumihiro Kaneko Yale University May 1997 Note: Center Discussion Papers are preliminary materials circulated to stimulate discussions and critical comments. Dr. Kaneko is a Ph.D. candidate in the Department of Economics. An Outcome-Oriented Theory of Choice and Empirical Paradoxes in Expected Utility Theory Fumihiro Kaneko* Department of Economics Yale University 12 May 1997 Abstract I analyze observed choice between lotteries from an outcome-oriented point of view in the framework of choice between random variables. I characterize a choice maker, who faces a choice situation between lotteries, by (1) a surmising process that associates, with a pair of lotteries, a set of well-defined choice situations between random variables, and (2) a choice set that is a collection of well-defined choice situations. I give a partial axiomatic foundation of the theory. The theory is applied to explain the well-known paradoxes in expected utility theory. Keywords: Expected Utility Theory, SSA Representation, SSB Representation, Prospect Theory, Choice under Uncertainty ________________________ *The author thanks Professors Donald Brown, Truman Bewley, David Pearce, Dilip Abreu, and other participants of the seminar in Yale University for very helpful comments.