We consider a model of hierarchical organizations in which agents have the option of reducing the probability of failure by investing towards their decisions. A mechanism specifies a distribution of sanctions in case of failure across the levels of the hierarchy. It is said to be...

The purpose of the study is to explore, in the context of the Israeli-Palestinian conflict, the influence of framing a decision task as inclusion or exclusion on Israeli-Jewish respondents' support for the concession of Jewish settlements in the West Bank and Gaza. Respondents received a list of...

Every simple monotonic game in bv'NA is a weighted majority game. Every game v \in bv'NA has a representation v=u+\sum_{i=1}^{\infty}f_i o \mu_i where u \in pNA, \mu_i \in NA^1 and f_i is a sequence of bv' functions with \sum_{i=1}^{\infty}||f_i||<\infty. Moreover, the representation is unique if we require f_i to be singular and that for every i <> j, \mu_i <>\mu_j.

A 4-person quota game is analyzed and discussed, in which players find it beneficial to pay others, in order to encourage favorable coalition structure.

This paper investigates the effectiveness of shaming penalties. It establishes that there may be an inverse relation between the rate of shaming penalties and their deterrent effects - the more people are shamed the less deterring shaming penalties become. This conclusion is based on a search...

Animal conflicts are often characterized by time dependent strategy sets. This paper considers the following type of animal conflicts: a member of a group is at risk and needs the assistance of another member to be saved. As long as assistance is not provided, the individual which is at risk has...

Nobel Lecture.

In this note we propose to use the mathematical formalism of Quantum Mechanics to capture the idea that agents’ preferences, in addition to being typically uncertain, can also be indeterminate. They are determined (realized, and not merely revealed) only when the action takes place. An agent...

This paper extends the standard model of optimum commodity taxation (Ramsey (1927) and Diamond-Mirrlees (1971)) to a competitive economy in which some markets are inefficient due to asymmetric information. As in most insurance markets, consumers impose varying costs on suppliers but …firms...