银行上市、绩效考察与对策研究

国有控股银行的改革对中国的经济发展具有重要意义.通过实证检验得出的结论有二:第一,单纯依靠重组治理结构来改善银行的经营业绩是不现实的;第二,目前中国商业银行的拓展市场业务比改善治理结构更重要.     

International Trade and Manufacturing Employment in the South: Four Country Case Studies

This paper investigates the impact of international trade on manufacturing employment in developing countries, by undertaking a comparative study of four countries—Bangladesh, Kenya, South Africa and Vietnam. It does so by employing a variety of methodological approaches: factor content; growth accounting; and econometric modelling. The main empirical finding is that international trade seems to be associated with the net creation of jobs in Bangladesh and Vietnam, with female workers being the key beneficiaries. In contrast, international trade has been associated with adverse employment outcomes in Kenya, and possibly in South Africa. This suggests that there may be crucial differences between Asia and Africa in terms of the impact of globalization on employment opportunities in manufacturing. Some alternative explanations for such differences are offered in the paper.     

虚拟经济核算：问题与解决方案——基于统计技术层面的研究大纲

虚拟经济概念的提出及理论架构的建立,是我国一项重要的经济学理论创新.虚拟经济核算体系的构建,则可为该理论提供指导实践的工具.本文基于国民经济核算SNA体系的基本原理,以资金交易流量为核心概念,以重复交易流量为重点,以交易数据取得为突破口,从统计学理论与数据搜集技术层面,针对虚拟经济测度体系中的基本理论、核算方法与系统结构、数据的收集与处理、模拟实验及应用检验四方面问题,提出了解决方案.     

Corporate borrowing and profitability in India

This paper examines effects of different types of corporate borrowing on firm profitability in India. We show that in contrast to the conventional thinking on the importance of monitored debt in determining firm performance, what matters more is arm's‐length lending in the form of fixed deposits in influencing firm profitability. We argue that the strategic implications of fixed deposits can be mainly attributed to the fact that they are both unsecured and privately held, which make the creditors associated with this type of debt the most likely to monitor firms' performance. The results suggest that debt structure matters, and it is important to take into account institutional differences and the heterogeneity of debt in the analysis of capital structure on firm performance. Copyright © 2009 John Wiley & Sons, Ltd.     

Theory of the firm in relation to exchange rates,import substitution and export

Neoclassical theory deals with the profit maximizing beheviour of the firm in a closed economy. Once an open-economy condition is introduced, the impact of the exchange rate on the cost and price parameters of the firm and, consequently, its import substitution and export decisions becomes relevant. A model is presented with case studies in which, given the exchange rate, the firm seeks to determine the optimal level of import substitution, output and export with the objective of maximizing its profit. In today's competitive world when countries are liberalizing and moving towards an open trade regime, the influence of exchange rates on the decision-making processes of firms is bound to be significant. An approach which provides them with a methodology for spelling out their options and making optimal choices is, therefore, of considerable practical interest.     

非参数回归在物流配送中心库存量中的应用

以物流配送中心库存管理策略（R，S）中库存量预测的问题为研究对象，提出应用非参数回归方法对库存量进行拟合，用该方法与最小二乘法比较。并用非参数K邻近法则对库存量进行预测，丰富订货期制定方法。以某物流配送中心31天大米滞留库存量数据为例，研究结果表明，核回归模型拟合值较一元二次回归模型优异，得到较为理想的结果，实现通过统计模型客观地对物流配送中心库存信息智能化管理提供理论依据。     

Estimating marginal external costs of transport in Delhi

This paper develops the model and methodology to estimate the marginal external cost of urban road transport, which is necessary for analysing optimal urban transport prices. Four major marginal external costs analysed in this paper include the marginal external costs for congestion, air pollution, road accidents and noise. The paper estimates the marginal external costs for cars and buses in peak and off-peak periods for Delhi urban agglomeration for the year 2005.     

基于最小生成树的分簇协作频谱感知改进算法

为减少分簇过程中的时延,基于最小生成树的单向比较优势提出簇首快速推举方法,并提出改进的分簇协作频谱感知算法,分析了算法的时间复杂度。算法首先基于最小划分对所有次用户节点进行分簇,簇内节点根据设置的评价条件进行性能比较,推举簇首。由簇首进行本地簇内频谱检测,并上传检测结果,最后融合中心在簇首间实现协作的频谱检测。在瑞利信道条件下,仿真显示在大信噪比时,融合中心应用AND规则,系统具有较小的虚警率,所提算法检测性能优;小信噪比时,应用OR规则能扩展系统的有效检测区间,所提算法在满足系统要求的前提下检测性能较差,但簇内信道效率提高了n-1倍。     

军事物流系统决策问题求解的综合集成方法

从军事物流系统特性的角度提出并论证了军事物流系统是开放的复杂性巨系统,并指出要用综合集成的方法解决军事物流系统决策问题,对军事物流复杂系统综合集成研讨厅的构成结构进行了研究,并探讨了解决军事物流系统决策问题的理论框架.