In many decision scenarios, one has to choose an element from a set S given some reference point e. For the case where S is a subset of the Euclidean space , we axiomatize the choice method that selects the point in S that is closet to e.

The aim of this paper is to demonstrate that the requirement that preferences be definable ca be analyzed fruitfully in formal terms. More specifically, the paper provides an exemple of a formal investigation of the connection between a decision maker's language and the set of definable preferences.

This paper deals with repeated decision problems which are similar to the task of guessing the color outcomes of five independent spinnings of a roulette wheel, 60% of whose slots are covered in red and 40% in white, where each correct guess yields a prize of 1$.

The paper questions the methodology of "economics and psychology". It focuses on the case of hyperbolic discounting. Using some experimental results, I argue that the same sort of evidence which rejects the standard constant discount utility functions can just as easily reject hyperbolic...

We asked subjects to self-select into one of two constests, "coin" or "die." The winner in each of the contest is the person with most correct guesses of 20 coin flips or 20 rolls of a die, respectively. Most subjects reported that they belived that most people would go to the "coin" group. They...

Debates often serve as intitutions of mechanisms for resolving conflicts and making decisions. In this paper , we present a simple model in order to explain two phenomena concerning debate rules.

The paper summarizes my experience in teaching an undergraduate course in game theory in 1998. Students were required to submit two types of problem sets: pre-class problem sets, which served as experiments, and post-class problem sets, which require the students to study and apply the solution...

We classify the responses to owr paper " On the Interpretation of Decision Problems with Imperfect Recall" and address some of the points raised.