The opportunity to tell a white lie (i.e., a lie that benefits another person) generates a moral conflict between two opposite moral dictates, one pushing towards telling always the truth and the other pushing towards helping others. Here we study how people resolve this moral conflict. What...

We investigate experimentally whether collective choice matters for individual attitudes to ambiguity. We consider a two-urn Ellsberg experiment: one urn offers a 45% chance of winning a fixed monetary prize, the other an ambiguous chance. Participants choose either individually or in groups of...

This paper introduces excluding outlier voters (EOV) as a general mechanism for revealing true preferences in social choices, and for discouraging voters from strategic voting and manipula-tion. This mechanism is general in that it can be implemented with any voting system. The paper...

We present a new three-player game in which a proposer makes a suggestion on how to split $10 with a passive responder. The offer is accepted or rejected depending on the strategy profile of the neutral third-party whose payoffs are independent from his decisions. If the offer is accepted the...

We use experimental data from the “vote with the wallet” multiplayer prisoner's dilemma to investigate with a finite mixture approach the effect of a responsible purchase on players' satisfaction. We find clear-cut evidence of heterogeneity of preferences with two groups of players that...

We report results from a laboratory experiment on strategic bargaining with indivisibilities studying the role of asymmetries, both in preferences and institutions. We find that subjects do not fully grasp the equilibrium effects asymmetries have on bargaining power and identify how subjects'...

We investigate the relative merits of the Boston and Serial Dictatorship mechanisms when the timing of students' preference submission over schools varies within the structure of the mechanism. Despite the well-documented disadvantages of the Boston mechanism (Abdulkadiroglu and Sonmez, 2003),...

Politicians, CEOs and various other types of dictators make social choices that influence both their own and others' welfare. When a dictator's preferred alternative differs from recipients', it is unclear which preferences they aggregate and how they determine this set of admissible...

There are many situations where different groups make collective decisions by voting in an assembly or committee in which each group is represented by a single person. There is a great deal of theoretical, normative literature on the question of what voting system such an assembly should use,...

We investigate how individuals think groups should aggregate members' ordinal preferences - that is, how they interpret "the will of the people." In an experiment, we elicit revealed attitudes toward ordinal preference aggregation and classify subjects according to the rules they apparently...