控制权分裂、股权分置与上市公司治理

运用现代企业理论的分析工具,试图揭示股权分置与公司治理的内在联系与作用机理。在分析不同企业形态下的控制权配置后,论证由于控制权的分裂,使得股权分置对公司治理产生重大影响。最后结合中国股市发展的特殊历程,探讨了股权分置改革的意义所在。     

收入差距过大对效率与公平关系的影响

收入差距过大不仅产生公平问题,而且也会对效率产生重要的影响。公平和效率之间的关系,也就需要进行更加细致的讨论。公平和效率之间,既具有矛盾性,又具有一致性。     

信贷资源配置与经济可持续发展

概述了经济可持续发展与信贷资源配置的关系，从绍兴市的实际出发，分析了信贷资源配置上的缺陷，提出了改善信贷资源配置支持经济可持续发展的思考和建议．     

明晰土地产权,积极培育农村要素市场——基于广西庆林村的马六坡案例

本文首先分析了产权、资源配置与产业结构的关系,接着通过对马六坡引进“公司 基地 农户”经营模式进行了分析,认为其成功经验是:以土地为代表的农村生产要素的优化配置是成功的关键;企业是整合农村生产要素的有效组织形式。最后,对案例提出了两点问题,并说明了相关对策。     

电信规制中两难冲突的改善

从委托代理理论出发,建立了电信规制的最优规划模型,探讨了完全信息下和不对称信息下两难冲突的有效解问题,得出了低效率运营商的产量扭曲不影响帕累托效率的结论。在此基础上,对目标函数、配置效率函数、信息租金函数进行了模拟分析,认为解决电信规制中两难冲突需改善电信规制两难冲突的策略,采取具体措施尽可能地利用运营商的私有信息,实现其自我选择;同时,需制定电信规制机制的局限性,从而进一步研究电信规制两难冲突的问题。     

Reliability Analysis Based on the Losses from Failures

The conventional reliability analysis is based on the premise that increasing the reliability of a system will decrease the losses from failures. On the basis of counterexamples, it is demonstrated that this is valid only if all failures are associated with the same losses. In case of failures associated with different losses, a system with larger reliability is not necessarily characterized by smaller losses from failures. Consequently, a theoretical framework and models are proposed for a reliability analysis, linking reliability and the losses from failures. Equations related to the distributions of the potential losses from failure have been derived. It is argued that the classical risk equation only estimates the average value of the potential losses from failure and does not provide insight into the variability associated with the potential losses. Equations have also been derived for determining the potential and the expected losses from failures for nonrepairable and repairable systems with components arranged in series, with arbitrary life distributions. The equations are also valid for systems/components with multiple mutually exclusive failure modes. The expected losses given failure is a linear combination of the expected losses from failure associated with the separate failure modes scaled by the conditional probabilities with which the failure modes initiate failure. On this basis, an efficient method for simplifying complex reliability block diagrams has been developed. Branches of components arranged in series whose failures are mutually exclusive can be reduced to single components with equivalent hazard rate, downtime, and expected costs associated with intervention and repair. A model for estimating the expected losses from early-life failures has also been developed. For a specified time interval, the expected losses from early-life failures are a sum of the products of the expected number of failures in the specified time intervals covering the early-life failures region and the expected losses given failure characterizing the corresponding time intervals. For complex systems whose components are not logically arranged in series, discrete simulation algorithms and software have been created for determining the losses from failures in terms of expected lost production time, cost of intervention, and cost of replacement. Different system topologies are assessed to determine the effect of modifications of the system topology on the expected losses from failures. It is argued that the reliability allocation in a production system should be done to maximize the profit/value associated with the system. Consequently, a method for setting reliability requirements and reliability allocation maximizing the profit by minimizing the total cost has been developed. Reliability allocation that maximizes the profit in case of a system consisting of blocks arranged in series is achieved by determining for each block individually the reliabilities of the components in the block that minimize the sum of the capital, operation costs, and the expected losses from failures. A Monte Carlo simulation based net present value (NPV) cash-flow model has also been proposed, which has significant advantages to cash-flow models based on the expected value of the losses from failures per time interval. Unlike these models, the proposed model has the capability to reveal the variation of the NPV due to different number of failures occurring during a specified time interval (e.g., during one year). The model also permits tracking the impact of the distribution pattern of failure occurrences and the time dependence of the losses from failures.     

色噪声下MIMO信道估计优化及容量下限分析

针对色噪声背景下MIMO块平坦衰落信道进行了估计和优化,并以信道估计的优化结果为基础,分析了估计信道的互信息量下限和系统的容量下限,提出了利用注水算法来优化发射端天线阵列的功率分配,以提高系统容量下限。仿真结果表明利用信道估计的优化结果,同时通过发送功率优化分配,可使MIMO系统容量下限有明显提高。     

宽带MISO/OFDM传输系统的性能分析

提出了一种自适应比特和功率分配的宽带MISO/OFDM传输系统,建立了宽带MISO/OFDM传输系统的模型,并对该系统的最大子载波信噪比性能进行了分析。仿真结果表明在多径衰落信道下,与没有采用自适应比特和功率分配的传统发射分集OFDM传输系统相比,该系统的误比特性能得到明显的提高。     

试论我国高校内部的资源配置

在揭示高校内部资源配置的现状和问题的基础上,对优化资源配置应坚持的原则和途径进行了初步探索。     

汽车转向梯形断开点位置的优化设计

应用空间机构运动学的原理,采用Matlab编制转向梯形断开点的通用优化计算程序,确定汽车转向梯形断开点的最佳位置,从而将悬架导向机构与转向杆系的运动干涉减至最小,为双横臂式独立悬架转向梯形设计提供了精确适用的方法.