Schiebener, Hannah (2021) Quadratic Voting and how it performs regarding Social Welfare. Bachelor's Thesis, Artificial Intelligence.
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Abstract
Quadratic Voting (QV) is a voting rule designed to allow voters to express the intensity of their preferences. This research investigates how QV performs with regard to utilitarian and egalitarian social welfare by simulating voting under QV and comparing the results to the voting outcome under majority voting. Data is generated to create voters’ preference intensities, voting strategies are developed representing different voter behavior, ballots are cast according to the various voting strategies and the voter welfare is computed to compare the performance of the voting rules. The results of this research show that QV yields a significant welfare improvement compared to majority voting, when voters spend their votes in proportion to their preference intensities. Furthermore, a growing population size negatively impacts the voter welfare and a larger amount of decisions significantly improves the welfare distribution among all voters when voters vote according to the best performing voting strategies.
| Item Type: | Thesis (Bachelor's Thesis) |
|---|---|
| Supervisor name: | Grossi, D. |
| Degree programme: | Artificial Intelligence |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 30 Aug 2021 10:00 |
| Last Modified: | 30 Aug 2021 10:00 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/25863 |
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