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Oral
Efficient and Thrifty Voting by Any Means Necessary
Debmalya Mandal · Ariel Procaccia · Nisarg Shah · David Woodruff

Wed Dec 11 03:50 PM -- 04:05 PM (PST) @ West Ballroom C
in Track 4 Session 4 »

We take an unorthodox view of voting by expanding the design space to include both the elicitation rule, whereby voters map their (cardinal) preferences to votes, and the aggregation rule, which transforms the reported votes into collective decisions. Intuitively, there is a tradeoff between the communication requirements of the elicitation rule (i.e., the number of bits of information that voters need to provide about their preferences) and the efficiency of the outcome of the aggregation rule, which we measure through distortion (i.e., how well the utilitarian social welfare of the outcome approximates the maximum social welfare in the worst case). Our results chart the Pareto frontier of the communication-distortion tradeoff.

[ Paper]  [ Slides] 

Author Information

Debmalya Mandal (Columbia University)
Ariel Procaccia (Carnegie Mellon University)
Nisarg Shah (University of Toronto)
David Woodruff (Carnegie Mellon University)

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