期刊
ECONOMIC THEORY
卷 19, 期 2, 页码 355-378出版社
SPRINGER-VERLAG
DOI: 10.1007/PL00004217
关键词
population ethics; rational choice; bargaining
类别
We analyze the rationalizability of variable-population social-choice functions in a welfarist framework. It is shown that fixed-population rationalizability and a weakening of congruence together are necessary and sufficient for rational choice, given a plausible dominance property that prevents the choice of alternatives involving low utility levels. In addition, a class of critical-level separable choice functions is characterized. This result, which extends an earlier axiomatization of a related class of bargaining solutions to a variable-population setting, is the first axiomatization of critical-level principles in a general choice-theoretic model.
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