On the generic strategic stability of Nash equilibria if voting is costly

We prove that for generic plurality games with positive cost of voting, the number of Nash equilibria is finite. Furthermore all the equilibria are regular, hence stable sets as singletons...................................................................................................................................................................................................................

Moderating government

We consider a model where policy motivated citizens vote in two simultaneous elections, one for the President who is elected by majority rule, in a single national district, and one for the Congressmen, each of whom is elected by majority rule in a local district. The policy to be implemented depends not only on who is elected President but also on the composition of the Congress. We characterize the equilibria of the model using a conditional sincerity concept that takes into account the possibility that some voters may be simultaneously decisive in both elections. Such a concept emerges naturally in a model with trembles. A crucial feature of the solution is the moderation of Government. Our results are robust to several modifications of the model

Sincere and strategic voters in a model of proportional representation

In this paper we analyze a model of proportional representation that allows for both sincere and strategic voting. We prove that strategic voters vote only for the extreme parties in any equilibrium, if the electorate is large. Moreover, we show that there is an effect of sincere voters' behavior on the equilibrium outcome, for which strategic voters cannot fully adjust.

On Asymmetric Behaviors if Voting is Costly

Most of the voting models restrict themselves to the analysis of symmetric equilibria, i.e. equilibria in which ‘similar’ voters make ‘similar’ voting decisions. In this paper we investigate this assumption under costly plurality voting. In any pure strategy equilibrium, if two active voters have the same preference order over candidates, they do vote for the same candidate. However, as an example shows, this type of result cannot be hoped for mixed strategies equilibria.Strategic Voting, Symmetric Equilibria

Extreme Voting under Proportional Representation: The Multidimensional Case

We study the strategic behavior of voters in a model of proportional representation, in which the policy space is multidimensional. Our main finding is that in large electorate, under some assumptions on voters'preferences, voters essentially vote, in any equilibrium, only for the extreme parties.Strategic Voting, Proportional Rule, Nash Equilibrium