Different evaluators typically disagree how to rank different candidates since they care more or less for the various qualities of the candidates. It is assumed that all evaluators submit vector bids assigning a monetary bid for each possible rank order. The rules must specify for all possible...

This paper considers mechanism design problems in environments with ambiguity-sensitive individuals. The novel idea of the paper is to introduce ambiguity in mechanisms so as to exploit the ambiguity sensitivity of individuals. We prove a revelation principle for the partial implementation of...

We introduce intention-based social preferences into a mechanism design framework with independent private values and quasilinear payoffs. For the case where the designer has no information about the intensity of social preferences, we provide conditions under which mechanisms which have been...

In this paper we provide sufficient conditions for a social choice rule to be implementable in strong Nash equilibrium in the presence of partially honest agents, that is, agents who break ties in favor of a truthful message when they face indifference between outcomes. In this way, we achieve a...

Noting that a full characterization of Nash-implementation is given using a canonical-mechanism and Maskin's theorem (Maskin, 1999) is shown using a mechanism with Saijo's type of strategy space reduction (Saijo, 1988), this paper fully characterizes the class of Nash-implementable social choice...

This paper studies the application of the notion of secure implementation (Cason, Saijo, Sjostrom, and Yamato, 2006; Saijo, Sjostrom, and Yamato, 2007) to the problem of allocating indivisible objects with monetary transfers. We propose a new domain-richness condition, termed as minimal richness. We...

A group of N individuals must choose between two collective alternatives. Under Quadratic Voting (QV), agents buy votes in favor of their preferred alternative from a clearing house, paying the square of the number of votes purchased; the sum of all votes purchased determines the outcome. We...

We consider a non cooperative game in which a continuum of heterogeneous individuals partition themselves into groups. A player's payoff depends on the group she chooses and the set of players who choose the same group as her.In the case of anonymous group externalities, we show that free...

A partially-honest individual is a person who follows the maxim, "Do not lie if you do not have to" to serve your material interest. By assuming that the mechanism designer knows that there is at least one partially-honest individual in a society of n≥3 individuals, a social choice rule (SCR)...

In this paper, we introduce the weak and the strong notions of partially honest agents (Dutta and Sen, 2012), and then study implementation by natural price-quantity mechanisms (Saijo et al., 1996a, 1999) in pure exchange economies. Firstly, assuming that there exists at least one partially...