William Gehrlein, Michel Le Breton, and Dominique Lepelley, The Likelihood of a Condorcet Winner in the Logrolling Setting, TSE Working Paper, n. 17-755, January 2017.


The purpose of this note is to compute the probability of logrolling for three different probabilistic cultures. The primary finding is that the restriction of preferences to be in accord with the condition of separable preferences creates enough additional structure among voters' preference rankings to create an increase in the likelihood that a Condorcet winner will exist with both IC and IAC-based scenarios.


Condorcet; Separable preferences; Logrolling; Vote Trading;

JEL codes

  • D71: Social Choice • Clubs • Committees • Associations
  • D72: Political Processes: Rent-Seeking, Lobbying, Elections, Legislatures, and Voting Behavior