On rationalizability of choice functions: A characterization of the median

被引：14

作者：

Gaertner, W ^{[1
]}

Xu, YS

机构：

[1] Univ Osnabruck, Dept Econ, D-49069 Osnabruck, Germany

[2] Univ Nottingham, Dept Econ, Nottingham NG7 2RD, England

[3] Hitotsubashi Univ, Inst Econ Res, Kunitachi, Tokyo 186, Japan

来源：

SOCIAL CHOICE AND WELFARE | 1999年 / 16卷 / 04期

关键词：

D O I：

10.1007/s003550050165

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

In this paper we characterize choice behaviour that picks the median element from a set of feasible alternatives. It is easily seen that this choice behaviour violates most of the standard consistency conditions for set contraction and set expansion. The paper offers a complete characterization in terms of pure choice function conditions, and contrasts the new axiom set with the traditional consistency conditions. It also suggests alternative external references which could explain the choice of the median.

引用

页码：629 / 638

页数：10

共 6 条

[1]

[Anonymous], HDB MATH EC

[2] Never choose the uniquely largest - A characterization [J].

Baigent, N ;

Gaertner, W .

ECONOMIC THEORY, 1996, 8 (02) :239-249

[3] RATIONAL NORMATIVE ECONOMICS VS SOCIAL-WELFARE AND SOCIAL CHOICE [J].

KOLM, SC .

EUROPEAN ECONOMIC REVIEW, 1994, 38 (3-4) :721-730

[4] CHOICE FUNCTIONS OVER A FINITE-SET - A SUMMARY [J].

MOULIN, H .

SOCIAL CHOICE AND WELFARE, 1985, 2 (02) :147-160

[5] PATH INDEPENDENCE, RATIONALITY, AND SOCIAL CHOICE [J].

PLOTT, CR .

ECONOMETRICA, 1973, 41 (06) :1075-1091

[6] INTERNAL CONSISTENCY OF CHOICE [J].

SEN, A .

ECONOMETRICA, 1993, 61 (03) :495-521

← 1 →