French Presidential Election: A Field Experiment on the Single Transferable Vote

Abstract

In this paper, we expose the results of a voting experiment realized in 2007, during the French Presidential election. This experiment aimed at confronting the single transferable vote (STV) procedure with two criteria: simplicity and the selection of a Condorcet-winner. Building on our electoral sample’s preferences, we show that this voting procedure can design a different winner, depending on the vote counting process. With the vote counting process advocated by Hare, the winner is Nicolas Sarkozy, while the Coombs vote counting process has François Bayrou as winner. For these two vote counting processes, the details of the experiment are the same and it is shown that the simplicity criterion is respected. However, with regard to the Condorcet-winner criterion, the Coombs method is the only one to elect the Condorcet-winner, i.e., François Bayrou.KeywordsPresidential ElectionElectoral SystemCondorcet WinnerApproval VoteVote CountingThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.