Nash implementation by stochastic mechanisms: a simple full characterization

TL;DR

This paper presents a surprisingly simple complete characterization of Nash implementation using stochastic mechanisms, contrasting with the complex classical results from Moore and Repullo (1990).

Contribution

It offers a new, simplified full characterization of Nash implementation via stochastic mechanisms, improving upon the complexity of prior work.

Findings

Provides a simple full characterization of Nash implementation with stochastic mechanisms.

Contrasts sharply with the classical, more complicated characterization by Moore and Repullo (1990).

Enhances understanding of mechanism design in game theory.

Abstract

We study Nash implementation by stochastic mechanisms, and provide a surprisingly simple full characterization, which is in sharp contrast to the classical, albeit complicated, full characterization in Moore and Repullo (1990).