Arrow's Theorem and Turing computability
Arrow's Theorem and Turing computability
复制标题
阿罗定理和图灵可计算性
DOI:
10.1007/s001990050157
复制
发表时间:
1997
期刊:
影响因子:
1.3
通讯作者:
H. R. Mihara
中科院分区:
文献类型:
--
作者:
H. R. Mihara
A social welfare function for a denumerable society satisfiesPairwise Computabilityif for each pair (x,y) of alternatives, there exists an algorithm that can decide from any description of each profile on {x,y} whether the society prefersxtoy. I prove that if a social welfare function satisfying Unanimity and Independence also satisfies Pairwise Computability, then it is dictatorial. This result severely limits on practical grounds Fishburn's resolution (1970) of Arrow's impossibility. I also give an interpretation of a denumerable “society.”