Is it ever safe to vote strategically?
| Autor: | Arkadii Slinko, Shaun White |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
FOS: Computer and information sciences
Economics and Econometrics media_common.quotation_subject Microeconomics Incentive Contingent vote Computer Science - Computer Science and Game Theory Voting International political economy Economics Set (psychology) Social choice theory Social Sciences (miscellaneous) Computer Science and Game Theory (cs.GT) Social policy Public finance media_common |
| Zdroj: | Social Choice and Welfare. 43:403-427 |
| ISSN: | 1432-217X 0176-1714 |
| Popis: | There are many situations in which mis-coordinated strategic voting can leave strategic voters worse off than they would have been had they not tried to strategise. We analyse the simplest of such scenarios, in which a set of strategic voters all have the same sincere preferences and all contemplate casting the same strategic vote, while all other voters are not strategic. Most mis-coordinations in this framework can be classified as instances of either strategic overshooting (too many voted strategically) or strategic undershooting (too few). If mis-coordination can result in strategic voters ending up worse off than they would have been had they all just voted sincerely, we call the strategic vote unsafe. We show that under every onto and non-dictatorial social choice rule there exist circumstances where a voter has an incentive to cast a safe strategic vote. We extend the Gibbard–Satterthwaite Theorem by proving that every onto and non-dictatorial social choice rule can be individually manipulated by a voter casting a safe strategic vote. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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