大跨度天基数据链的TDD时隙调度分析与优化

针对天基数据链系统卫星间的传播时延较大且节点间距离变化较大等特点，提出了一种提高时频资源利用率、提升系统容量、减小时延的方法。在时分多址与空分多址相结合的接入方式下，进行了时隙调度的分析与优化，利用卫星星座的空间复用与大跨度传播时延特性，采用时隙编排、收发状态调整、帧格式优化等手段，将信道利用率和系统容量提升了1倍，将卫星节点在某一方向获得服务的平均等待时间缩短为原来的1/4，提高了天基数据链系统的服务质量。     

The Dowry Gift in South Asia: An Institution on the Intersection of Market and Patriarchy

Abstract

Dowry refers to marriage gifts that are instrumental to the negotiation of the marriage contract. Historically, the dowry gift was constituted by law across the Roman empire. While dowry has become largely irrelevant in Europe in contemporary times, it is still pervasive across the Brahmanical Hindu societies of South Asia. Moreover, what was traditionally token gifts from friends and well-wishers has taken on the form of “new dowry” since the colonial period. “New dowry” is heavily composed of cash and market goods, including land and is frequently accompanied by violence against new brides when their families fail to make larger dowry gifts with higher market value. This article examines the evolution of “new dowry” through a Polanyian lens. Unlike the neoclassical Beckerian approach which takes an ahistorical outlook to marriage as a “market” for matching partners and dowry as a market price, the substantivist lens à la Polanyi investigates the historical evolution of “new dowry” through the advent of market processes in the colonial period and the countermovement of legal reform in the post-colonial period.     

我国知识产权壁垒研究现状及成因、对策简析——基于文献计量学的视角

随着针对知识产权壁垒研究的开展,学者们当前的研究热点及现状成为需要关注的方向。本研究基于文献计量学的视角,对2005.01-2015.03间CSSCI期刊中收录的以知识产权壁垒为研究主题的研究论文进行统计与关键词归类,并利用Ucinet软件,对知识产权壁垒的研究现状展开分析。研究结果显示,关于知识产权壁垒的研究尚处于起步阶段,研究热点主要集中于知识产权壁垒的定义与表现形式、337调查及应对策略等,而对于知识产权壁垒的成因分析却涉及较少。因此,本文继续以337调查事件为基础,结合我国现实,对知识产权壁垒形成的原因进行归纳,最终为打破知识产权壁垒提供了相应的对策建议。     

Trade Negotiations under Alternative Bargaining Structure

We build a bargaining model, in which a country (leader) decides whether or not to form a free trade agreement with other nations (followers), either through a sequential or a multilateral bargaining procedure. Unlike Aghion et al. ( 2007 , Journal of International Economics, 73, 1–30), in our specification of multilateral bargaining, the leader can collude with all those follower countries who agree to its offer. This has important implications for the choice of sequential and multilateral bargaining by the leader in presence of coalition externalities. Moreover, this bargaining procedure ensures that “stumbling block” equilibrium will never occur.     

Does educational diversity of managers matter for the performance of team‐managed funds?

We study the effect of the educational diversity of managers on the performance of team‐managed mutual funds using a large sample of U.S. equity funds from 1994 to 2013. We consider diversity in terms of both final educational degree and field of educational specialisation. We find that, in general, both types of diversity have a positive impact on fund performance, and our results are robust over a wide range of performance metrics and changes in market conditions.     

我国省域工业循环经济效率评价及其影响因素研究

以循环经济理论为基础,建立我国省域工业循环经济效率评价指标体系,使用包络分析(DEA)方法对我国30个省份2010~2013年工业循环经济效率进行评价,并进一步建立了其影响因素模型,使用Tobit方法对省域面板数据进行回归。通过研究发现,我国工业循环经济效率存在着较为明显的地区差异,并且工业技术投入强度、地区经济发展水平、人口密度对其有着显著的正向影响。     

Event Risk Covenants and Shareholder Wealth: Ethical Implications of the "Poison Put" Provision in Bonds

This paper examines the ethical implications of "poison put" provisions included in bond offerings. A number of firms are using event-risk protections in bond offerings in an effort to attract investors back into the bond market. One of the most common event-risk protections is a "poison put" provision, which allows the bondholder to "put" the bond back to the firm at par or at a premium under certain specified conditions, such as a takeover effort or a downgrading of the bond by rating agencies. While such a provision is obviously of value to the bondholders, there is a secondary effect that is not as obvious. Using such a provision helps to insure that boards of directors must put the interests of all of the stakeholders ahead of any personal interests of the board members, thus protecting the stakeholders. The use of event-risk protections helps to deter takeovers, induce bidders to negotiate with management in any takeover efforts, and avoid two-tier takeover offers. As a result, the "poison put" provisions have a positive impact on share values while simultaneously protecting the investments of bondholders. Such an impact makes the use of "poison put" provisions in bonds an ethical use of management power.     

博弈论和委托代理理论视角下的反洗钱监管研究

本文从反洗钱监管机构和金融机构的博弈分析入手,研究监管的最优化问题。分析得出监管机构必须对金融机构进行反洗钱约束,否则金融机构就会违规获益;最优事后监管并不能杜绝违规行为,而只是将违规行为控制在一定的范围;有效反洗钱监管需要额外成本等结论。在此基础上,本文提出实现我国反洗钱最优监管的政策建议。     

交通基础设施空间建设差异化影响了中国经济增长吗--基于2001-2011年中国31个省（市、自治区）数据的实证分析

在考虑交通基础设空间网络布局特性基础上,利用2001—2011年中国省级数据和空间计量研究方法,从直接效应和空间外部效应两个层面研究了交通基础设施空间建设差异化对中国经济增长的影响。结果表明：中国交通基础设施在地理空间上已然形成了三类稳固的差异化集群;虽然交通基础设施建设对区域经济增长有着显著的正向效应,但是受其自身空间建设差异化对经济增长负向效应影响,其对经济增长应有的促进效应未能全部体现。虽然交通基础设施空间建设差异化存在显著的空间负外部效应,不过该效应正在逐年减弱。扩大交通基础设施覆盖面与提升交通基础设施存量两者对经济增长都有着相近的正向弹性,不过前者的实际操作成本要明显低于后者。