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81.
82.
Philippe Jehiel 《Journal of Economic Theory》2007,134(1):494-512
We study multi-object auctions where agents have private and additive valuations for heterogeneous objects. We focus on the revenue properties of a class of dominant strategy mechanisms where a weight is assigned to each partition of objects. The weights influence the probability with which partitions are chosen in the mechanism. This class contains efficient auctions, pure bundling auctions, mixed bundling auctions, auctions with reserve prices and auctions with pre-packaged bundles. For any number of objects and bidders, both the pure bundling auction and separate, efficient auctions for the single objects are revenue-inferior to an auction that involves mixed bundling. 相似文献
83.
This research seeks to identify the importance of various capabilities and psychosociological factors of hotel managers, in order to improve their perception of the competitive environment emerging in the post-Internet era. Specifically, the study analyzes the relevance of education, experience, globalization capabilities, networking, creativity and vision of the future, and other factors related to personality and leadership, to advance the accuracy of this perception. The research used questionnaires with Spanish hotel managers, a Delphi study with international experts, and structural equation modeling to test the hypotheses formulated. The results corroborate the model established, and stress the importance of the education and globalization capabilities in this field. 相似文献
84.
第四方物流在我国具有广阔的发展空间,大力发展第四方物流必将使我国物流产业真正得到质的提升。本文利用SWOT分析方法,找出我国第四方物流发展中存在的机遇和挑战,并提出了相应对策和建议,为我国第四方物流发展提供决策依据。 相似文献
85.
Byong Ho Kang 《Journal of Asian Economics》1998,9(4):653-670
This paper explores causes of the Korean currency crisis which started in November 1997. This paper also presents restructuring proposals and introduces the progress made so far. The urgency for quick restructuring and the necessity of the injection of money from both the government and foreign investors are emphasized. Restructuring of financial and corporate sectors should be pursued simultaneously. In the financial sector, the restructuring of banks should take precedence over other financial institutions. The key task in terms of bank restructuring involves the resolution of bad loans, recapitalization and the expedited reorganization of nonviable banks. Corporate reform is also important. Banks should play a central role in corporate workouts, especially in lowering excessive corporate debt and triggering corporate restructuring based on core competence. Transparency of corporate management, internationally accepted accounting practices, fuller disclosure requirements and stronger monitoring by minority shareholders are prerequisites for effective market discipline. Reform of ownership and governance structure are also important in enhancing managerial accountability of corporates as well as financial institutions. 相似文献
86.
任播技术是一种新的网络应用。任播通信是支持导向服务地址的,但是目前IPv6中它的很多定义是模糊的,并且在控制路由方面没有达成一致的协议标准,因此节点间任播通信仍然无法实现。该文首先说明了基于IPv6的任播通信,及目前在该领域中存在许多可能的应用,并指出一些问题和与之对应的解决办法,随后介绍了一种使用特殊任播地址来建立TCP连接的任播地址解析协议,使得任播地址在适应已经存在的应用和高层协议时,不需要修改或者扩展的情况下更加有效。 相似文献
87.
丰国欣 《黄石理工学院学报》2000,16(2):48-53
从测试理论,测试实践和改进措施三方面评析了CET-4测试目标,认为其信度和效度各有高低的一面,提高CET-4通过率的根本出路在于英语水平的提高。 相似文献
88.
Clifford Winston 《Fiscal Studies》2000,21(4):403-425
This paper assesses governmental performance in its investment, provision and regulation of urban transportation. Attention is given to public bus and rail transit and road transportation. Evidence based on urban transport in US cities reveals substantial allocative and technical inefficiencies that have led to large public transit deficits and severe highway congestion. I argue that it is futile to expect public officials to remedy the situation by pursuing more efficient policies such as congestion pricing and weighing costs and benefits when deciding transit service. The problem is that urban transportation policy is largely shaped by entrenched political forces that inhibit constructive change. The only realistic way to improve the system is to shield it from those influences and expose it to market forces by privatising it. This position is supported by empirical evidence based on simulations for the US and the UK's early experience with privatisation. 相似文献
89.
本文从合成方法、原料、投资等几个方面把二异丙苯氧化制二元酚与其它合成二元酚的方法比较,分析其工业生产的可行性。 相似文献
90.
民办高校的发展,满足了人民群众对高等教育日益增长的需求,也成为推动我国高等教育大众化进程和提高全民族文化素质的一个有效途径,对于传播文化、发展文明、继承传统等方面发挥举足轻重的作用.本文从4Rs营销理论角度分析我国民办高校如何运用4Rs理论打造教育品牌. 相似文献