国际场外衍生品电子交易确认平台发展趋势及启示

交易确认是交易后处理过程中的重要环节,可以通过电话、邮件、传真等人工形式进行,也可以通过电子交易确认平台完成。由于人工确认的不及时可能导致交易失败从而增大交易成本和风险,近年来电子交易确认在国际O T C衍生品市场上得到了广泛的应用。文章梳理和区分了交易确认的概念,回顾了电子确认平台的发展历程,并在此基础上对电子交易确认平台的发展趋势进行了展望。     

施工总承包特级企业市场交易资质匹配研究

施工总承包特级企业是我国建筑业企业的龙头,其市场行为是否与其自身的资质和能力相匹配,影响建筑市场秩序和建筑行业的健康发展.文章在界定建筑业企业市场交易资质匹配概念的基础上,选取"中标次数"、"中标率"、"中标总金额"、"平均单位标段强度"、"中标次数修正指标"、"中标次数百分比修正指标",以及"中标金额百分比修正指标"和"平均单位标段强度修正指标",建立了相应的施工总承包特级企业市场交易资质匹配度测算模型,并利用2009年南京市建设工程交易数据进行了实证分析.测算结果与企业实际市场表现基本一致,表明模型建立科学,模型测算分值(QMI)能够反映企业在某一特定市场交易中的资质匹配状况.     

Waiting time probabilities in the M/G/1 + M queue

We consider an M/G/1 queueing system where the customers may leave the queue if their services do not commence before an exponentially distributed random time. The (conditional) offered waiting time distribution is approximated by a gamma distribution via matching the first and second moments of the actual waiting time. A simulation study is conducted to assess the accuracy of the approximation and it reveals that the approximation performs satisfactorily under general conditions on service time distributions.     

电动汽车所用电控系统性能介绍及设计

本文简要介绍电动汽车所用电机控制器的种类、结构、工作原理、特点和设计。     

河北省高校毕业生就业供需匹配研究

毕业生就业实质是高校人才培养与社会需求匹配的过程。本文将河北省高校毕业生就业问题放在河北省产业结构优化升级的大环境中来进行阐述和分析,从河北省高校就业结构出发分析其就业结构偏离度。进而根据河北省高校毕业生就业专业相关性不高、主要集中在民营企业、灵活就业居多、就业稳定性差等就业现状,从市场需求出发,着眼于高校教育供给、毕业生就业能力培养和畅通就业市场人才流动三个方面,分析河北省高校毕业生培养类型、学历层次、学科专业、通用就业能力和劳动力市场分割等方面与市场需求之间存在的矛盾。基于此,从三个方面提出破解河北省高校毕业生就业市场供需矛盾的思路：一是对河北省高校毕业生培养方向进行调整,二是加强大学生就业能力培养,三是加快京津冀劳动力市场一体化建设进程。     

深圳仓储物流的发展特征及趋势

通过对深圳仓储业的深入调查，在分析并阐述深圳仓储业的发展现状、特征与趋势的基础上，为我国仓储企业的发展提供了有益的借鉴。     

协议分析在入侵检测系统中的应用

模式匹配是入侵检测系统中常用的方法,这种算法速度快、效率高。但是单独使用模式匹配方法来检测入侵还存在一些弊端。为此,给出了一种高效、可靠的检测方法,即结合使用协议分析与模式匹配的分析方法,同时给出一个例子来说明协议分析的实现过程。     

THE ESTIMATED EFFECT OF CATHOLIC SCHOOLING ON EDUCATIONAL OUTCOMES USING PROPENSITY SCORE MATCHING

This paper examines the effect of attending a Catholic high school on educational outcomes. The statistical analysis is based on data obtained from the US National Educational Longitudinal Study. Using propensity score matching methods to control for selection bias, we find that Catholic schooling improves maths test scores, with stronger effects for males than for females, but appears to have little effect (if any) on reading scores. Catholic schooling also raises high school graduation rates and substantially increases the likelihood of enrolment in a 4‐year college. Use of the difference‐in‐difference method suggests that the effect of Catholic schooling on changes in maths scores is more muted, though still statistically significant.     

成人英语学习特点分析与对策

章从成人英语学习的特点出发，提出培养与激发成人学习英语的兴趣与动机应立足于成人学习特点，并从四个方面论述了有效提高成人英语教学的方法。     

Markov equilibria in dynamic matching and bargaining games

Rubinstein and Wolinsky [Rev. Econ. Stud. 57 (1990) 63] show that a simple homogeneous market with exogenous matching has a continuum of (non-competitive) perfect equilibria; however, the unique Markov-perfect equilibrium of this model is competitive. By contrast, in the more general case of heterogeneous markets, even the Markov property is not enough to guarantee the perfectly competitive outcome. We define a market game that allows for heterogeneous values on both sides of the market and exhibit a number of examples of (non-competitive) Markov-perfect equilibria, with and without discounting. Unlike the homogeneous case, these equilibria allow for inefficient trades and for trade at non-uniform prices. The non-competitive equilibrium may be unique.