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We consider several notions of setwise stability for many-to-many matching markets with contracts and provide an analysis of the relations between the resulting sets of stable allocations for general, substitutable, and strongly substitutable preferences. Apart from obtaining “set inclusion results” on all three domains, we introduce weak setwise stability as a new stability concept and prove that for substitutable preferences the set of pairwise stable matchings is nonempty and coincides with the set of weakly setwise stable matchings. For strongly substitutable preferences the set of pairwise stable matchings coincides with the set of setwise stable matchings. 相似文献
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城市尺度的网络竞争力研究 总被引:2,自引:0,他引:2
随着全球化和城市化进程的加快,城市之间的竞争也越来越白热化.论文将城市竞争力与城市之间的多维联系网络相结合,不但关注体现城市节点内部属性的发展指标,而且还将城市节点之间的联系和结构与这些发展指标相结合,运用社会网络分析(SNA)得出城市在网络中的竞争力,并在此基础上提出了网络竞争力的概念模型和分析框架,丰富了现有的城市竞争力理论. 相似文献
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This paper considers the evolutionary dynamics of a free trade agreement (FTA) network formation game among N countries. We first explore the static model introduced by Goyal and Joshi (2006) and precisely characterize the set of pairwise stable FTA networks. Then, we develop a dynamic model under random perturbations and identify long-run outcomes to remove prediction uncertainty inherited from static analysis. The results show that both partial free trade and global free trade will result when there are only three countries. However, when more countries are involved, only the complete FTA network emerges. 相似文献
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语言作为一种符号系统,它与外部通过媒介交流使自己的的重要性得以确立,交际本身又创造了属于自己的语言,当计算机被广泛运用于各个领域后,网络语言随即诞生,从词法学的角度介绍网络语言,进而为探究网络语言的产生、构成以及未来的发展打基础. 相似文献
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电子商务网络会计探析 总被引:3,自引:0,他引:3
从理论与管理的角度探讨电子商务对传统会计的冲击,分析现行的会计体系应如何适应电子商务的发展。指出网络会计是电子商务的重要组成部分,财务、业务的高度协同是网络会计显著特征。随着电子商务的发展,网络会计将成为当代会计学中最具潜力的新领域。 相似文献
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This paper studies a simple dynamic model of interbank credit relationships. Starting from a given balance sheet structure of a banking system with a realistic distribution of bank sizes, the necessity of establishing interbank credit connections emerges from idiosyncratic liquidity shocks. Banks initially choose potential trading partners randomly, but over time form preferential relationships via an elementary reinforcement learning algorithm. As it turns out, the dynamic evolution of this system displays a formation of a core-periphery structure with mainly the largest banks assuming the roles of money center banks mediating between the liquidity needs of many smaller banks. Statistical analysis shows that this evolving interbank market shares the majority of the salient characteristics of interbank credit relationship that have been put forth in recent literature. Preferential interest rates for borrowers with strong attachment to a lender may prevent the system from becoming extortionary and guarantee the survival of the small peripherical banks. 相似文献
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随着网络应用的迅速普及和发展,网络广告已经成为这一新兴媒体不可或缺的一部分,文中仅结合网络广告特有的传播方式和独特优势从消费心理角度分析一下网络广告的策略。 相似文献
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网络经济与企业组织创新 总被引:1,自引:0,他引:1
在熊彼特对创新的定义中,实现高质量经济增长的创新不仅仅包含产品创新、工艺创新等技术创新,还应该包括采用新的企业组织形式,即组织创新。网络经济时代,信息技术在推动社会发展的同时,也给企业带来了管理上的革命。企业必须打破旧的组织模式,倡导与之相适应的网络化组织模式。 相似文献
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This paper presents the results of laboratory experiments that explore the network formation process. Performances of three institutions, each derived from theoretical models found in the literature, are compared. All three institutions are found to generate similar levels of efficiency. In hospitable environments, the institutions achieve 85% efficiency, but all three fail to generate any positive surplus when stress tested.Received: 28 May 2002, Accepted: 14 March 2003, JEL Classification:
A14, C70, C90, D20The authors wish to thank the International Foundation for Research in Experimental Economics for financial support in the form of subject payment money. This work has greatly benefited from comments by an anonymous referee, Rob Gilles, participants in the Social Network session at the 2001 Southern Economic Association Meetings, and seminar participants at the University of Arkansas. 相似文献
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Richard Baron Jacques Durieu Hans Haller Rahul Savani Philippe Solal 《Review of Economic Design》2008,12(1):1-19
We investigate the computational complexity of several decision problems in a simple strategic game of network formation.
We find that deciding if a player has a strategy that guarantees him a certain payoff against a given strategy profile of
the other players is an NP-complete problem. Deciding if there exists a strategy profile that guarantees a certain aggregate payoff is also NP-complete. Deciding if there is a Nash equilibrium in pure strategies which guarantees a certain payoff to each player is
NP-hard. The problem of deciding if a given strategy profile is a Nash equilibrium is investigated as well.
We would like to thank both referees for valuable corrections and suggestions and one referee in particular for a very detailed
and beneficial critique. We thank Colin de la Higuera for fruitful discussions. Support by the French Ministry for Youth,
Education and Research, through project SCSHS-2004-04 is gratefully acknowledged. 相似文献
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随着现代信息技术的高速发展,网络已成为现代社会经济的重要工具。网络知识产权的保护也成为广泛关注的问题。本文以网络主体企业——电信为例,采用规范研究的方法,对网络知识产权进行了探索与研究,在此基础上,从法律的视角提出了防范网络知识产权的对策与建议。 相似文献
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网络文学的商业化促使网络文学用户产生了快速的增长,本文首先对网络文学网站进行了分类,然后分析了目前网络文学网站发展存在的问题,最后提出了网络文学网站发展的对策。 相似文献
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论述了网络使用期内管理的重要性,分别以网络失效管理,性能管理,计费管理,配置管理和安全管理五个方面来进行具体分析。强调网络管理必须走标准化的道路,以及网络操作系统共享资源管理的实现。 相似文献
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利用中国30个省份(不含西藏和港澳台地区)的2016年绿色发展指数,构建修正引力模型,采用社会网络分析方法对中国绿色发展的空间网络结构特征进行的研究发现:2008—2016年中国绿色发展水平提升显著,地区间差异在缩小但差异仍较为明显,且地区间的联系突破地理邻近效应,呈现为广泛复杂的网络关联和结构形态并趋于稳定。绿色发展空间分布呈现:以环渤海为主的“双向溢出”板块,主要体现出经济及技术外溢以及能源输入;以西南地区为主的“双向溢出”板块主要进行资源供给及接受技术外溢;以东部沿海省份为主的“主受益”板块,体现其绿色发展得益于西北及环渤海地区的资源供给,各指标水平较高且均衡,但板块外的溢出效应不明显;西北地区省份为主的“净溢出”板块,各方面发展均比较落后,主要对环渤海地区进行资源供给;陕西、河南作为资源密集型省份,其绿色发展受自身经济、产业结构等因素的限制,但因其地理位置居中,处于网络中心性最高的重要地位,与其他省份存在较广泛密切的联系,建议培育为新的绿色发展增长极;总体上,板块内部聚类明显,但仍存在板块内部分省份及板块间的互动不强,需打破行政壁垒,发挥自身优势,促进板块间的技术、人才交流及资金流动,实现绿色协同发展。 相似文献
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中国城市网络研究的自主性建构 总被引:1,自引:0,他引:1
中国城市网络的研究起源于20世纪80年代的城市经济体制改革,近十多年来,受到来自国外城市网络研究理论和方法的影响。追溯20世纪80—90年代中国城市网络的研究动态,梳理当前城市网络研究的三大领域,即全球生产网络、企业内部网络、基础设施网络的脉络,并指出存在的问题,然后提出如何紧密联系中国的城镇化实践,形成自主性的中国城市网络研究具有重要的现实意义。 相似文献
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文中以调查分析研究为主,借鉴现有的消费者行为理论、网络消费理论,对服装网络消费行为进行问卷调查,概括总结出我国目前服装网络消费行为的基本特征,以及其在发展过程中存在的主要问题,最后针对问题提出相应的对策。 相似文献
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网络环境下会计基本假设的思考 总被引:1,自引:0,他引:1
随着网络的飞速发展,社会的各个领域都在发生变化。会计作为经济管理工具,同样也会受到冲击,而作为会计核算前提的会计基本假设也必将受到影响。本文从传统会计假设的分析入手,通过分析网络环境对其产生的影响,进而提出重构会计假设的设想。 相似文献
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Abstract. Economic agents' behaviour is affected by their position in a network, either exogenous or endogenous, in which they interact with a sub-set of neighbours only. The network's links, which may be generated by vertical and/or horizontal relations, or by more complex morphologies, may explain the transition between dynamic equilibria and the instability of economic aggregates. Moreover, networks shape strategic interaction among agents by determining their strategies; the problem of access and interconnection, particularly relevant in the Internet, is perhaps the best example. A two-way feedback between strategies and network structures arises instead when links are endogenous: those features are clearly shown in the mechanism underlying the formation of peering links and R & D networks. 相似文献