Strategic Cost Selection in Participatory Budgeting

Piotr Faliszewski (AGH University), Łukasz Janeczko (AGH University), Andrzej Kaczmarczyk (AGH University), Grzegorz Lisowski (AGH University), Piotr Skowron (University of Warsaw), Stanisław Szufa (AGH University)

Abstract

We study strategic behavior of project proposers in the context of participatory budgeting. We assume that the votes are fixed and known and the proposers want to set as high project prices as possible, provided that their projects get selected and the prices are not below the minimum costs of their delivery. We study the existence of Nash equilibria in such games. Furthermore, we report an experimental study of the games we propose.