A mixed-utility theory of vote choice regret

The paper builds upon an original pre- and post-election survey that we conducted before and after the 2015 Canadian election. Directly after Election Day, we asked Canadians for which party they voted, and whether they regret their choice. We find that 39% of them are not perfectly happy with their decision, and 4% even say that they made a bad decision. We show that the propensity to regret can be explained by a mixed-utility theory, whereby voters attempt to maximize a mixture of instrumental and expressive utilities. Our study contributes to the literatures on voting behaviour and political economy, which usually considers that voters are either instrumental or expressive, but not both at the same time.     

Spatial Approval Voting

This article provides a model for analyzing approval votingelections. Within a standard probabilistic spatial voting setting,we show that principal component analysis makes it possibleto derive candidates' relative locations from the approval votes.We apply this technique to original experimental data from theFrench 2002 presidential election.     

On choosing the alternative with the best median evaluation

The voting rule proposed by Basset and Persky (Public Choice 99:299?C310, 1999) picks the alternative with the best median evaluation. This paper shows that this MaxMed principle is equivalent to the MaxMin (so-called Rawls??) principle, with the proviso that one can discard half of the population. In one-dimensional, single-peaked domains, the paper compares the MaxMed rule with majority rule and the utilitarian criterion. The MaxMed outcome is rejected by a majority of voters in favor of outcomes that are also utilitarian improvements.