On strategy-proofness and essentially single-valued cores: A converse result

In a general model of indivisible good allocation, S?nmez (1999) established that, whenever the core is nonempty for each preference profile, if an allocation rule is strategy-proof, individually rational and Pareto optimal, then the rule is a selection from the core correspondence, and the core correspondence must be essentially single-valued. This paper studies the converse claim of this result. I demonstrate that whenever the preference domain satisfies a certain condition of `richness', if the core correspondence is essentially single-valued, then any selection from the core correspondence is strategy-proof (even weakly coalition strategy-proof, in fact). In particular, on the domain of preferences in which each individual has strict preferences over his own assignments and there is no consumption externality, such an allocation rule is coalition strategy-proof. And on this domain, coalition strategy-proofness is equivalent to Maskin monotonicity, an important property in implementation theory. Received: 22 February 2000/Accepted: 22 January 2002 I am grateful to Ryo-ichi Nagahisa, Shinji Ohseto, Hiroshi Ono, Tomoichi Shinotsuka and Shigehiro Serizawa for valuable comments. And I am indebted to two anonymous referees for useful suggestions. Especially, I owe the present proof of Lemma 2 to one referee. I also thank Yukihiko Funaki, Atsushi Kajii, Mamoru Kaneko, Eiichi Miyagawa, Tatsuyoshi Saijo, Manimay Sengupta, Yves Sprumont, Yoshikatsu Tatamitani, Manabu Toda, Takashi Ui, Takehiko Yamato, Naoki Yoshihara and the participants of the seminars in Hokkaido University, Kansai University, ISER (Osaka University), Otaru University of Commerce and Tsukuba University. All errors are my own responsiblity.     

在万能工具显微镜上测量齿轮截面整体误差的研究

本文论述在万能工具显微镜上测量渐开圆柱齿轮截面整体误差的测量原理、测量方法和数据处理过程,并给出了测量实例。     

圆锥轴受扭时静、动力的传递矩阵法求解

本文提出了圆锥轴受扭时静、动力的传递矩阵。该方法简便实用,适于工程技术人员在微机上应用。     

学生英语词汇量的现状及扩大词汇量的语音手段

本文用包括深圳大学在内的具体事实和数据阐明了学生英语词汇量普遍偏低的现状及其危害,并在宏观上指出教师应负的责任,进而介绍了帮助学生扩大词汇量的八种行之有效的语音手段。     

企业家人力资本模型初论

企业家人力资本模型把企业家的甄别分为两个阶段:企业家人力资本的积累和企业家人力资本的配置。在企业家人力资本积累过程中个体完成了企业家资格的自我甄别。其中个体的先天心理特质和制度环境起着重要作用。企业家人力资本的配置实际上是企业家人力资本的市场甄别,市场对个体传递的企业家人力资本信号———学历、经历与业绩、个人资本和社会资本———进行甄别,以发现"真正"企业家人力资本,并完成企业家人力资本的配置。其中个人财富只是一个重要信号,而不是惟一信号。     

The dilemma of recognition: Administrative categories and cultural diversity

Governments around the world combat inequality by means of group-specific redistribution. Some pursue redistribution that benefits groups, but also wish to avoid accentuating or even recognizing group distinctions. This poses a dilemma that they try to resolve by adjusting the category system used to target redistribution. There are three types of adjustment: accommodation (the multicultural approach), denial (the ideal-typical liberal solution), and replacement (a compromise). In replacement the targets of redistributive policies are constructed to avoid accentuation or recognition of inconvenient group distinctions, but still allow redistribution that benefits these groups. Replacement is increasingly in demand around the world because the disadvantages of multiculturalism are becoming apparent while denial is hard to sustain in the face of group inequality. The actual effect of replacement is little researched and less understood, however. Does it resolve the dilemma of recognition? Two examples–India and Nigeria–where replacement has been tried ever since the 1950s cast doubt on its viability.     

东北老工业基地社会工作专业教育初探

发展东北老工业基地社会工作教育事业的关键是协调好各种关系。主要有:在坚持专业化办学的基础上实现社会工作专业教育的本土化;突出对学生实践能力的培养;科学地设置专业课程;根据地区的特殊需求培养人才类型;力争得到政府的积极支持;培养社会工作专业教师和学生的“利他主义”的价值观等专业理念。     

论缔约过失责任的赔偿范围

赔偿范围问题在缔约过失责任理论中一直颇有争议。本文基于缔约过失责任概念的基本界定,认为缔约过失责任损害赔偿的基本范围为信赖利益的损失。相应地,为契合缔约过失责任理论的创立初衷和平衡当事人的利益,信赖利益的赔偿范围应包括了间接利益、非财产上损失以及第三人等损失,但应以履行利益为限。     

对成都大学发展规划及办学特色的思考

本文就新成大发展规划及办学特色,提出向大众化就业办学方向转型,以专业学院为主体,辅以文理学院的学校组织结构,强调社会需求导向,并以“服务地方、崇尚实用”作为首选特色,坚持“有所为有所不为”,提升学校的核心竞争力。