On demand responsiveness in additive cost sharing

• 成果类型: Article
• 署名作者: Moulin, H; Sprumont, Y
• 署名单位: Rice University; Universite de Montreal
• 刊物名称: JOURNAL OF ECONOMIC THEORY
• ISSN/ISSBN: 0022-0531
• DOI: 10.1016/j.jet.2004.05.003
• 发表日期: 2005
• 页码: 1-35
• 关键词: cost sharing; Additivity; cross-subsidization; group monotonicity; Solidarity; serial method; Shapley-Shubik method

摘要

Under partial responsibility, the ranking of cost shares should never contradict that of demands. The Solidarity axiom says that if agent i demands more j should not pay more if k pays less. It characterizes the quasi-proportional methods, sharing cost in proportion to 'resealed' demands. Full responsibility, rules out cross-subsidization for additively separable costs. Restricting solidarity to submodular cost characterizes the fixed-flow, methods, containing the Shapley-Shubik and serial methods. The quasi-proportional methods meet-but most fixed-flow methods fail-Group Monotonicity: if a group of agents increase their demands, not all of them pay less. Serial cost sharing is an exception. (c) 2004 Elsevier Inc. All rights reserved.