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1.
Summary. All agents have the same ordinal ranking over all objects, receiving no object (opting out) may be preferable to some objects,
agents differ on which objects are worse than opting out, and the latter information is private. The Probabilistic Serial
assignment, improves upon (in the Pareto sense) the Random Priority assignment, that randomly orders the agents and offers
them successively the most valuable remaining object. We characterize Probabilistic Serial by efficiency in an ordinal sense,
and envy-freeness. We characterize it also by ordinal efficiency, strategyproofness and equal treatment of equals.
Received: October 5, 1999; revised version: December 20, 2000 相似文献
2.
ITS研究中,动态OD矩阵估计是交通动态分配的关键因素。针对OD矩阵难以获得的问题,回顾动态OD矩阵估计理论的发展历程,明确该领域研究中的三个关键问题:状态变量的选择、系统方程的确定、OD量与路段流量的关系(分配矩阵)。在此基础上介绍一种基于历史OD矩阵数据的估计方法,卡尔曼滤波算法,为动态OD矩阵估计理论的进一步的研究奠定基础。 相似文献
3.
我国国际保理法律机制探究 总被引:2,自引:0,他引:2
我国办理国际保理的规模尚小。国际保理业务的一些通行做法与我国国内法律环境“不兼容”是影响其发展的关键因素。笔者在探究了由我国《合同法》确立的商事债权让与制度的基础上,分析以此制度作为我国国际保理的法律规范不能完全适应保理实务和国际惯例的要求。其中对未来发生应收账款债权转让的效力、禁转约定的抗辩、隐蔽性保理在我国法律体系下所遭遇的不适及就应收账转让引起的权利冲突等问题,进行了详细的论述,并提出了相应的立法修正原则。 相似文献
4.
In Korea, regulators could assign auditors to firms. We investigate the relationship among audit fees, mandatory auditor assignment, and the joint provision of non-audit and auditor services in Korea. We find that assigned auditors charge significantly higher audit fees than freely selected auditors. We also find that the joint provision of non-audit and audit services does intensify the relation between auditor assignment and audit fees. Combined with the results of other studies that have shown that firms audited by assigned auditors report smaller amounts of discretionary accruals than firms audited by freely selected auditors, our results suggest the possibility that mandatory auditor assignment may improve auditor independence. 相似文献
5.
This study constitutes a novel application of network analysis to explore the underlying mechanisms of tourist attraction network informed by tourist flows. Using survey data collected from a sample of 456 tourists visiting Xinjiang, China, the study applies the Quadratic Assignment Procedure (QAP) to test the relationships between region proximity, grade proximity, and tenure proximity, and the attraction network determined by tourists' free choice movements. Results show that while region proximity and tenure proximity among major attractions in a destination were positively related to attraction network, grade proximity was negatively related to the attraction network, indicating that same grade attractions were mostly competing with one another for tourists. The study contributes to the methodological development of social network analysis in tourism and advances understanding of demand-driven network relationships among tourist attractions in a destination. Destination management implications are discussed. 相似文献
6.
This paper presents a model for housing markets with interdependent values. We introduce private information on the quality of a house (i.e., high or low), which is known only to the initial owner. Interdependency means that the ex-post preference of an agent depends on the private information of the other agents with regard to the quality of houses. We prove that on a domain satisfying a richness condition, the no-trade rule is the only rule that satisfies ex-post incentive compatibility and ex-post individual rationality. 相似文献
7.
This paper proposes a new nonlinear distance-based transit fare structure, which is measured by a function of the Euclidean distance between the origin and destination stations, termed as Origin-Destination (OD)-based fare. The novel fare structure encourages passengers to freely choose the most efficient trip plan. An optimization model is formulated based on a three-party game (involving the transport authority, transit company, and passenger) to determine the optimal fare function and frequency. An artificial bee colony algorithm is adopted to solve the model. Finally, a numerical example is provided to verify the proposed method. 相似文献
8.
This paper focuses on the procurement of full truck-load transportation service with the view to ensuring sustainability in transport logistics. The carrier assignment problem (CAP) involved in truck load contract auction is studied using a complete enumeration method and heuristic approach. Performance of both methods is compared in terms of solution quality and computational time based on the results of sample problems considered. Also, the impact of combinatorial bidding on reducing empty haul in real world case is analyzed and environmental sustainability is achieved through reduction in carbon foot print. 相似文献
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