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  1.  30
    Pareto Principles, Positive Responsiveness, and Majority Decisions.Susumu Cato - 2011 - Theory and Decision 71 (4):503-518.
    This article investigates the relationship among the weak Pareto principle, the strong Pareto principle, and positive responsiveness in the context of voting. First, it is shown that under a mild domain condition, if an anonymous and neutral collective choice rule (CCR) is complete and transitive, then the weak Pareto principle and the strong Pareto principle are equivalent. Next, it is shown that under another mild domain condition, if a neutral CCR is transitive, then the strong Pareto principle and positive responsiveness (...)
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  2.  49
    Independence of Irrelevant Alternatives Revisited.Susumu Cato - 2014 - Theory and Decision 76 (4):511-527.
    This paper aims to reexamine the axiom of the independence of irrelevant alternatives in the theory of social choice. A generalized notion of independence is introduced to clarify an informational requirement of binary independence which is usually imposed in the Arrovian framework. We characterize the implication of binary independence.
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  3.  44
    Social Choice, the Strong Pareto Principle, and Conditional Decisiveness.Susumu Cato - 2013 - Theory and Decision 75 (4):563-579.
    This paper examines social choice theory with the strong Pareto principle. The notion of conditional decisiveness is introduced to clarify the underlying power structure behind strongly Paretian aggregation rules satisfying binary independence. We discuss the various degrees of social rationality: transitivity, semi-transitivity, the interval-order property, quasi-transitivity, and acyclicity.
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    Conditions on Social-Preference Cycles.Susumu Cato - 2015 - Theory and Decision 79 (1):1-13.