Neutrality in arrow and other impossibility theorems

Summary. Although not assumed explicitly, we show that neutrality plays an important role in Arrow and other impossibility theorems. Applying it to pivotal voters we produce direct proofs of classical impossibility theorems, including Arrow's, as well as extend some of these theorems. We further explore the role of neutrality showing that it is equivalent to Pareto or reverse Pareto, and to effective dictatorship for non-null social welfare functions satisfying the principle of independence of irrelevant alternatives. It is also equivalent to Wilson's Citizens' Sovereignty--which is related to the intuition that symmetry over alternatives makes social preference depend only on citizens' preferences. We show that some of these results are more fundamental than others in that they extend both to infinite societies and to considerably smaller domains of preferences. Finally, as an application of Arrow's theorem, we provide a simple proof of the Gibbard-Satterthwaite theorem.Received: 13 April 2000, Revised: 6 December 2002, JEL Classification Numbers: D71, C70.I thank Salvador Barberá, Luis Corchón, Cesar Martinelli, Eric Maskin, Tomas Sjöström, Ricard Torres, José Pedro Ubeda, and an anonymous referee for feedback. The proofs of Arrow's theorem and two Wilson's theorems come from a note I wrote in 1987 at Universitat Autónoma de Barcelona (Ubeda [16]). In 1996 Geanakoplos [7] wrote a proof of Arrow's theorem similar but not identical to mine. All work in this paper is independent of his.     

The distributional impact of unification and the 1992–93 recession on West German households

The 1992–93 recession in the western states of Germany has been attributed, in substantial measure, to the macroeconomic consequences of policies to finance unification. Studies of the costs of unification have not attempted to measure the burden of the recession. We estimate a dynamic, panel model of household incomes using data from the German Socio-Economic Panel (GSOEP) and use it to forecast what these incomes would have been in 1992–94 without a recession. Using a ratio of actual to forecast incomes, we compare the relative burden of the recession across households. Our findings suggest that western households below the median income bore the brunt of the combined impact of unification and the recession of 1992–93.
JEL classification: P3, D3, E3.     

我国救济性投资的现状、问题及对策

我国救济性投资的救济力度远远低于救济需求,在社会救济意识、救济管理、资金来源、投资形式等方面存在不足,投资增长缓慢,且存在城乡失衡和地区失衡.应创新公民的社会保障观念和思维模式,建立健全救济性投资的管理机制,着力解决救济性投资的不平衡问题,并且投资形式要向着多元化、多层次的方向发展.     

辐射迁移方程--一个K-辛空间上的正则方程

说明了均匀、轴对称、无源介质是一个K-辛空间上的Hamilton系统，Hamilton函数是系统的守恒量；数值计算辐射强度角分布的合理途径是将辐射迁移方程离散成以离散Hamilton函数为守恒量的有限维K-辛空间上的正则方程，并采用保离散Hamilton函数守恒的K-辛算法数值求解．     

工业设计人才培养体系的构建和优化

该文从现代企业的生产方式及工业设计师应具备的基本素质出发，阐述了21世纪工业设计专业人才的培养体系和培养模式及其特点，构建了培养工业设计应用型人才的课程体系。     

工商管理学科实验教学体系研究

在追溯工商管理学科实验方法发展历史进程的基础上,分析了工商管理学科4种实验教学模式的特点,系统研究了我国高校工商管理学科实验教学的具体构架。     

经济管理类专业计算机相关课程的设置与开放实验教学的研究

文章根据新形势下经济管理类专业对计算机及相关技术的特殊要求,讨论了计算机相关课程的设置,提出了实验教学改革的想法,即如何构建和管理开放实验室。     

以创新创业基地建设促进物流实验室发展

该文主要阐述了怎样通过建设一个创新创业基地的架构,即管理思路、组织原则、创新流程等一系列实验室管理模式,来提供给管理类大学生一个得到实践锻炼的良好平台,同时也促进管理类专业实验室合理有效的管理。     

民办本科院校经济管理专业实践性教学初探

分析了本科院校的教育定位和经济管理类专业的教学模式;探讨以信息和信息技术完美的结合为实践型教育的支撑点,倡导学校具体教学单位与专业软件开发商共同研究开发出经济管理专业的应用型教学模拟软件并用于教学的问题。     

企业管理专业实验教学的实践与探索

通过实验室模拟系统和电子沙盘等实验工具和手段的使用,企业管理专业实验教学活动面临着新要求和新机遇。模拟系统和电子沙盘系统在实验教学中的应用,不仅改善了专业实验教学的条件和环境,也对专业实验教学工作提出了新的更高要求。这些新技术、新环境的应用将极大地改善企业管理专业实验教学的软件资源不足的现实困难,也是传统计算机单机条件下实验环境和实验条件的重要拓展。