基于博弈论的供应链管理分析

运用博弈论的思想,从“囚徒困境”类的完全信息静态博弈、重复博弈、不完全信息动态博弈、信号博弈等角度,对供应链节点企业的合作关系进行分析。     

信息披露对供应商产品定价的影响研究

通过构建供应商直接价格竞争的信号博弈模型,研究了不同信息披露情形下的供应商定价-收益均衡。对均衡结果进行分析表明:(1)供应商的竞争促使信息得到完全披露;(2)名誉损失成本可促使供应商披露可靠信息;(3)信息披露过程中,供应商可能会牺牲客户的利益而获利。     

Determinants of Currency Crises in Emerging Markets: The Case of Turkey

This paper investigates possible determinants of currency crises in Turkey. We use three different techniques—namely, the signaling approach, structural model, and Markov switching model with monthly data for the period 1992-2004. The results show that money market pressure index, real-sector confidence index, and public-sector variables are significant in explaining currency crises. Hence, one can say that banking crises lead to currency crises. Central banks' real-sector confidence index may be a good leading indicator for currency crises.     

Risk signal, financial derivatives transactions and the Indonesian GAAP

Motivated by the accounting events of firm＇s default related to derivatives and other financial instruments transactions, this study is aimed to investigate the capability of accounting information to signal the risks associated with the use of financial derivatives for hedging. Hypothesis are developed based on the theory and empirical evidences of manager＇s motive to use derivatives for hedging （Berkman ＆ Bradbury, 1968; Dune, et al., 2003） as well as signaling theory of accounting information （Ball ＆ Brown, 1968; Beaver ＆ Dukes, 1972; Jensen ＆ Meckling, 1976; Megginson, 1997）. The hypotheses are formulated in the Ordinary Least Square model. The study uses Statistical Product and Service Solutions （SPSS） version 14 as software to conduct the statistical tests. Non-bank and non-financial institutions firms with financial derivatives transactions listed in Indonesian Stock Exchange during 2001 to 2006 are chosen as the sample. Determinations of the time frame has considered the timing of introduction of revisions of accounting standard on derivatives and other financial instruments in Indonesia PSAK 50 Financial Instruments： Presentations and Disclosures which was published in July, 1998, as well as PSAK 55 Financial Instruments： Recognition and Measurements which was published in 1998. Based on the sample selections procedure and the completeness of the data required by the model, 24 firms listed during 2001-2006 or equal to 66 firm-years observations were identified as the data to be tested. Empirical evidences suggests that Indonesian GAAP is capable of providing signal associated with： （1） Fair value exposures related to manager＇s motive to reduce the cost of financial distress; （2） Cash flow exposures related to manager＇s motive to practice tax arbitrage as well as to overcome underinvestment problems; （3） Interest rate risks related to manager＇s motive to avoid the risk default due to limitations of debt covenants; （4） Forex risk related to manager＇s motive to control forex exposures caused by foreign operations as well as foreign sales.     

计轴自动站间闭塞结合电路的改进

针对计轴自动站间闭塞结合电路中存在区间设备故障不关闭出发信号的联锁失效安全隐患进行了成因分析,提出了电路改进方案,并在现场设备中进行实际应用,证明了其可行性。     

铁路既有线信号电缆径路防护的探讨

文章从铁路既有线信号电缆径路施工配合、日常维护管理方面探讨电缆径路安全防护工作,提出“超前防范、提前介入、主动配合、严格把关”的施工配合原则及“全过程控制、零挖断”的防护理念,做好监督与配合工作,从完善标准、明确责任、规范检查制度、电缆日常管理等方面探讨如何做好维护工作.     

自动线典型失控状态随机信号的模拟分析与研究

使用控制图对在线零件加工质量进行检测是一种十分经济的质量控制手段。但在随机抽样检验时也不可避免地要冒两类误判的风险。为减少此类误判事件的发生,对典型在线加工失控随机信号进行多次的重复模拟分析与研究就显得十分必要。用高斯白噪声模拟失控随机信号应该说是最接近现场实际情况的。但高斯白噪声产生的随机数序列不具备可重复性,这就给分析与研究工作带来不便。运用混沌学研究的成果,选取恰当的混沌数来构造自动线典型失控随机信号,就成为进行在线质量监控动态模拟过程中防止误判的关键。     

群信号信道化技术实现方法的仿真与分析

针对群信号中有用子信道信号检测和解调难度较大的问题,通过分析均匀数字滤波器组分析器的基本型,提出了将多相结构和奇偶分路应用于群信号信道化技术的方法。仿真结果表明,这两种方法都有效降低了算法复杂度,而奇偶分路法进一步提高了算法的运行效率,目前已通过硬件实现。     

平面信号交叉口综合服务水平的灰色定权聚类分析

基于以往交叉口的研究成果,从评价管理的角度对平面信号交叉口进行研究,全面考虑交叉口综合服务水平的影响因素,选择3个层面的8个指标构建交叉口综合服务水平评价指标体系,并对交叉口进行灰色定权聚类分析,以期确定交叉口的服务水平等级,实现对平面信号交叉口的综合评价。同时,力求通过灰色聚类分析,找到制约交叉口服务水平提升的瓶颈,实现对交叉口的有效管理和改善。     

地铁信号系统发展趋势及功能区别

地铁信号系统,是保证列车高效、安全运行的核心部件。信号系统的发展,经历了一系列的演变,现在已越来越趋于成熟。随着信号系统的不断升级及发展,各种信号系统在设计理念及功能方面都有了差异。文章主要以南京地铁一号线及二号线的信号系统进行对比。