Bounded oligarchy: How and when factions constrain leaders in party position-taking

This work investigates the process of position-taking, focussing on the factional bargaining within the party. Exploiting two recently built datasets that estimated the policy positions of Italian parties and factions from 1946 to 2010, we investigate if and to what extent factions bind the party leader in choosing the platform. We find confirmation for the idea that party positions are linked to factional preferences. Overall, the party works as a ‘bounded oligarchy’. Furthermore, the electoral payoff of party unity increases the impact of factional constraints when general elections approach. In line with the cartel party theory, however, autonomous leaders who are directly elected by a wider selectorate can get rid of factional ties choosing more moderate and vote-maximizing platforms.