We study a dynamic model of elections where many parties may enter or exit political competition. At each election a new political leadership arrives for each party. The leadership cannot choose the party's platform (ideological identities are fixed) but must decide whether or not to contest the...

We analyse the quality (informativeness and efficiency) of advice obtained from a committee of careerist experts where voting is secret but voting profiles are 'leaked' with an exogenously given probability. We show that fully informative voting is generically possible only when the common prior...

We study classist societies where the middle class fight over redistribution of public funds with the marginalized and over social policies with the elites. We show that such societies are often deprived of well-defined majoritarian preferences, underscoring the importance of the party system....

We study a networked society where public good provision and access are both local and where selfish agents co-habit with others who follow Kantian imperatives. We find that the locations of the Kantians in the network play a nuanced role in determining aggregate free-riding and material...

We analyze the consequences of a monopolistic, non-partisan, profit-maximizing media on policy divergence. The media undertakes costly coverage that may reveal the quality of an office-seeking political challenger only if quality-conscious voters pay an access fee. Voters are ideologically...