Preference Elicitation For Participatory Budgeting

Participatory budgeting enables the allocation of public funds by collecting and aggregating individual preferences; it has already had a sizable real-world impact. But making the most of this new paradigm requires a rethinking of some of the basics of computational social choice, including the very way in which individuals express their preferences. We analytically compare four preference elicitation methods — knapsack votes, rankings by value or value for money, and threshold approval votes — through the lens of implicit utilitarian voting, and find that threshold approval votes are qualitatively superior. This conclusion is supported by experiments using data from real participatory budgeting elections.

Authors

• Gerdus Benade
• Swaprava Nath
• Ariel Procaccia
• Nisarg Shah University of Toronto

Keywords

No keywords are indexed for this paper.