Tournament games and positive tournaments
Journal of Graph Theory
On the Hardness and Existence of Quasi-Strict Equilibria
SAGT '08 Proceedings of the 1st International Symposium on Algorithmic Game Theory
Nonexistence of voting rules that are usually hard to manipulate
AAAI'06 Proceedings of the 21st national conference on Artificial intelligence - Volume 1
Group-strategyproof irresolute social choice functions
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume One
Proceedings of the 11th International Conference on Autonomous Agents and Multiagent Systems - Volume 2
Truthfulness and stochastic dominance with monetary transfers
Proceedings of the fourteenth ACM conference on Electronic commerce
Maximal recursive rule: a new social decision scheme
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
Welfare maximization and truthfulness in mechanism design with ordinal preferences
Proceedings of the 5th conference on Innovations in theoretical computer science
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Two fundamental notions in microeconomic theory are efficiency---no agent can be made better off without making another one worse off---and strategyproofness---no agent can obtain a more preferred outcome by misrepresenting his preferences. When social outcomes are probability distributions (or lotteries) over alternatives, there are varying degrees of these notions depending on how preferences over alternatives are extended to preference over lotteries. We show that efficiency and strategyproofness are incompatible to some extent when preferences are defined using stochastic dominance (SD) and therefore introduce a natural weakening of SD based on Savage's sure-thing principle (ST). While random serial dictatorship is SD-strategyproof, it only satisfies ST-efficiency. Our main result is that strict maximal lotteries---an appealing class of social decision schemes due to Kreweras and Fishburn---satisfy SD-efficiency and ST-strategyproofness.