Equilibrium refinement through negotiation in binary voting

Présentation de Umberto Grandi, Université Toulouse 1

Umberto Grandi
Joint work with Paolo Turrini (University of Warwick, UK) and Davide Grossi (University of Groningen, NL)

Abstract: We study voting games on binary issues, where voters hold an objective over the out- come of the collective decision and are allowed, before the vote takes place, to negotiate their voting strategy with the other participants. We analyse the voters’rational behaviour in the resulting two-phase game, showing under what conditions undesirable equilibria can be removed and desirable ones sustained as a consequence of the pre-vote phase.