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.     

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.     

近雅远俗话词论

词体天然具备着一种介质的属性,它穿凿游刃于雅、俗间。中国传统词论对词作之雅、俗评判见仁见智,甚至大相径庭,这属于传统词论的一种生态平衡,除了证明接受美学的多解性,更可从古代文化思想对词论产生的直接影响中找到答案。     

浅析我国的三元经济结构

我国目前出现了传统的农业、工业和先进的信息产业并存的三元经济结构。由于我国的信息产业崛起于二元经济结构，因此其发展不可避免地受到二元经济结构的制约。另一方面，信息产业的发展也有一定的独立性，从而使得信息产业能够对改造传统产业和优化经济结构发挥作用。但是，信息产业在促进传统产业升级的同时，也可能在某些方面制约传统产业的发展，并拉大城乡差距、工业化与城市化的差距。     

浅谈行为规范与青年心理的关系

本文对企业文化形成的背景及青年心理特征进行分析,探讨行为规范设定的心理学依据。通过寻找行为激励的有效途径与技巧,来满足青年员工不同层次的心理需求,在为青年人营造良好的人文环境,提供能够使其发挥创意的平台的同时实现企业行为文化的最终目标。     

高校大学生人文精神培养探析

针对目前社会发展对高素质人才的要求及高校人文教育现状,提出培养高校学生的人文精神应从四方面着手,即强化人文教育的整体环境氛围,突出人文教育的民族特色,紧密结合高校各专业的学科特点,有利于学生创新精神和创新能力的培养。     

日本大城市圈的开发建设

城市是社会经济发展的产物,大城市圈又是社会政治、经济、文化和居住功能日益现代化的必然结果。战后,日本的大城市圈是20世纪60年代后与社会经济日益高度发展同步协调开发建设起来的。目前,日本全国已开发建设起了东京、大阪和名古屋等一系列大城市圈。日本的大城市圈主要是以圈域结构为地域特征的社会综合活动的集合体,它有效地发挥出了城市设施主体布局合理化和循环经济体系化、内外联系有机化,而且实现行政管理圈、工业生产活动圈、流通集散营销圈、居民生活居住圈、文化娱乐活动圈等多结构并存,布局合理的城市结构体系。目前,我国也正在开发“长三角都市圈”、“南京都市圈”等一系列大城市圈,因此,研究日本的大城市圈开发建设无疑对我国正在开发建设的“都市圈”有其现实的借鉴意义。     

论日本的公司体制转轨

自明治维新日本走上资本主义道路后,便逐渐建立起了股份公司制度,并在其传统文化的基础上,组建起了以家族为中心的公司体制。后经“战时经济体制”的强制作用,使家族资本主义的公司体制与国家垄断资本主义体制结为一体,形成了政企统合的“御用”性公司体制。战后的民主改革又使公司以银行为中心结成了以法人治理为中心的法人资本主义公司体制。到20世纪90年代初期,随着新一轮经济转型的展开,日本传统的公司体制正在发生着前所未有的巨大变革。可以说,当前日本公司体制的变革是一次脱传统文化的制度性变迁的转轨。