对参加“步步高杯“全国女排联赛运动队拦网状况的比较研究

通过对2004~2005和2005~2006两个赛季的女子“步步高杯”全国联赛中的拦网状况分析和研究,指出了栏网存在的主要问题,并提出了合理化的建议。     

发展用户驻地网与打破本地固话垄断

本文提出了一个发展用户驻地网的思路,着重论述了发展用户驻地网可有效地打破本地固话垄断,兼述了发展驻地网对电信管制的影响及发展驻地网所需解决的问题。     

A spatiotemporal auto-regressive moving average model for solar radiation

Summary.  To investigate the variability in energy output from a network of photovoltaic cells, solar radiation was recorded at 10 sites every 10 min in the Pentland Hills to the south of Edinburgh. We identify spatiotemporal auto-regressive moving average models as the most appropriate to address this problem. Although previously considered computationally prohibitive to work with, we show that by approximating using toroidal space and fitting by matching auto-correlations, calculations can be substantially reduced. We find that a first-order spatiotemporal auto-regressive (STAR(1)) process with a first-order neighbourhood structure and a Matern noise process provide an adequate fit to the data, and we demonstrate its use in simulating realizations of energy output.     

控股股权交易中控股股东的义务——以控制权溢价为视角

控制权溢价是指用来购买公司控股股权而支付的超过非控股股权转让价格以上的价格部分,其存在已为经济学的实证研究所证实。控股股权交易(协议转让)原则上不需公司有权机关批准,包含控制权溢价在内的转让价格由交易双方商定,对公司和其他股东的权益产生重大影响。控股股权协议转让中控股股东的诚信义务可具体化为调查义务、信息披露义务,以及特定情形下的忠实义务,义务的违反直接导致与控制权溢价归属相关的法律后果。我国应针对控制权溢价存在的事实,对上市公司协议收购中的控股股东课以具体的诚信义务形式。     

Block external bootstrap in partially linear models with nonstationary strong mixing error terms

The authors extend the block external bootstrap to partially linear regression models with strongly mixing, nonstationary error terms. In addition to providing an approximate distribution for the semiparametric least square estimator of the parametric component, they propose a consistent estimator of the co‐variance matrix of this estimator.     

动态变化的变阻器电路及其在电路教学实验中的应用

通过对滑动变阻器的动态分析及应用举例,让学生对滑动变阻器有较高层次的理解和掌握,促使学生培养分析问题解决问题的能力,从被动观察变为主动的实验设计和研究者。     

改进的OBS长度自适应门限组装算法

现有OBS长度自适应组装算法的突发数据长度门限的选择虽然随着业务流的变化而变化,克服了固定长度门限算法输出的突发数据的突发性,但仍然没有考虑业务流的自相似特性,因此不能有效降低输出突发数据的自相似程度和分组阻塞率。针对这一问题,该文提出了一种改进的OBS长度自适应门限组装算法,能根据到达的网络业务流的自相似特性自适应地调整长度门限值。仿真结果表明:在相同的调度算法下,更能降低业务流的自相似性,分组阻塞率降低一个数量级。     

沿边开放与区域经济增长——基于制度变迁的研究

主要关注沿边开放地区的制度变迁对经济增长的影响效应,基于2003—2018年我国8个沿边省份的73个地级城市面板数据,运用双向固定模型、分位数回归、门槛效应模型和中介效应模型进行科学严谨的研究,主要结论有:(1)沿边开放的制度变迁有利于促进区域经济增长,并且在一系列稳健性检验后,该结论仍然成立;(2)分位数回归发现,随着经济增长率分位数点的增加,沿边开放地区的制度变迁对经济增长的促进作用呈现出先变小、再变大的U型特征;(3)门槛效应发现,随着制度质量水平提升,沿边开放地区制度变迁对区域经济增长的作用效果呈现出边际递减的特征;(4)异质性发现,城镇化方面,高城镇化的沿边地区制度变迁促进经济增长的作用大于低城镇化地区。创新水平方面,在高创新水平地区,沿边开放的制度变迁显著促进区域经济增长,而低创新水平地区不显著;(5)中介效应发现,沿边开放地区的制度变迁主要通过外商直接投资和固定资产投资增加,进而促进区域经济增长,其中固定资产投资起到完全中介作用。结论为进一步深化改革开放、加快沿边开放地区发展和构建开放型经济新体制提供一定经验依据和政策支持。     

Effects of fixed costs in two-person sequential bargaining

Rubinstein (1982) considered the problem of dividing a given surplus between two players sequentially, and then proposed a model in which the two players alternately make and respond to each other's offers through time. He further characterized the perfect equilibrium outcomes, which depend on the players time preferences and order of moves. Using both equal and unequal bargaining cost conditions and an unlimited number of rounds, two experiments were designed to compare the perfect equilibrium model to alternative models based on norms of fairness. We report analyses of final agreements, first offers, and number of bargaining rounds, which provide limited support to the perfect equilibrium model, and then conclude by recommending a shift in focus from model testing to specification of the conditions favoring one model over another.     

A Population Approach to Analysis of Variance Models

Several authors have contributed to what can now be considered a rather complete theory for analysis of variance in cases with orthogonal factors. By using this theory on an assumed basic reference population, the orthogonality concept gives a natural definition of independence between factors in the population. By looking upon the treated units in designed experiments as a formal sample from a future population about which we want to make inference, a natural parametrization of expectations and variances connected to such experiments arises. This approach seems to throw light upon several controversial questions in the theory of mixed models. Also, it gives a framework for discussing the choice of conditioning in models