A general framework is suggested to describe human decision making in a certain class of experiments performed in a trading laboratory. We are in particular interested in discerning between two different moods, or states of the investors, corresponding to investors using fundemental investment...

In this paper, we give a characterization of meet-projections in simple atomistic lattices that generalizes results on the aggregation of partitions in cluster analysis.

This article surveys seven directions of consensus theories : Arrowian results, federation consensus rules, metric consensus rules, tournament solutions, restricted domains, abstract consensus theories, algorithmic and complexity issues. This survey is oriented in the sense that it is mainly –...

In this paper, we give a characterization of meet-projections in simple atomistic lattices that generalizes results on the aggregation of partitions in cluster analysis.

This paper provides evidence that local social interactions within etnic groups may explain the puzzling variations in labour-market outcomes across individuals. Peer effects work first by creating pressure on labor-market participation, second, by conveying information about job opportunities...

This paper proposes a new theory of social norms that explores the relation between individuals' income, time allocation decisions, and consumption choices on the one hand, and the determinants of individuals' decision to conform or not to social norms on the other. It is shown that rational...

We investigate the role of manipulation in a model of opinion formation where agents have opinions about some common question of interest. Agents repeatedly communicate with their neighbors in the social network, can exert some effort to manipulate the trust of others, and update their opinions...

This paper, on the one hand, goes a step closer to demonstrate the causality of social capital on economic performance. On the other hand, we confirm a continued role of social capital effects on economic performance in this paper by using a much larger sample, spanning three decades and...

This paper proposes a new formulation of the theory of social norms. The theoretical model explores the interrelation between individuals' income, time-use and consumption decisions on the one hand, and the determinants of their decision to conform or not to social norms on the other. It is...

We model virtue as an asset on the marriage market : since men value virginity in prospective mates, preserving their virtue increases girls' chances of getting a "good" husband, and therefore allows for upward social mobility. Consistent with some historical and anthropological evidence, we...