中国物流业的发展分析

现代企业竞争的焦点聚集在被称为企业的"第三利润源泉"的物流业上,加入WTO后,我国物流业面临着国外先进物流企业的巨大竞争压力.本文在分析中国物流业目前面临的问题的基础上,结合中国的实际,提出了中国物流业健康发展应采取的一系列切实可行的措施与对策.     

新股发行主体行为和博弈分析

新股发行市场较小的市场厚度使得理论分析不仅要涉及一般的供给需求分析,还必须深入研究供给和需求的形成过程以及供求双方的相互作用。本文拟从博弈角度研究新股发行过程政府、发行公司、中介机构和投资者的行为特征和多主体博弈过程,分别从信息完全和信息不完全两个角度研究博弈过程和结果,以期对新股发行制度改革提供初步的理论分析基础。     

论旅游可持续消费

本文旨在从消费的角度研究“可持续旅游”,内容包括旅游可持续消费的背景、内涵、意义和实现 途径等。     

TRIZ在无人机起落架系统设计中的应用研究

本文针对无人机起落架系统的用户需求,应用质量功能展开方法完成了起落架系统的设计.同时应用TRIZ理论,将实际工程设计中的矛盾转化为标准的技术矛盾,并应用矛盾矩阵加以解决,提升了起落架系统的设计效率.     

光学遥感观测技术在IDI保险行业的应用

IDI保险是工程质量类保险的一种,在国内主要应用于住宅项目。IDI保险需要在工程建设的全过程中进行质量管控和风险评估。常规水准检测、GPS等技术难以满足IDI保险对风险建筑进行大范围、快速、长期监测的需要。光学遥感观测技术是一种可以实现大面积地物监测的遥感观测技术,该技术可以为IDI保险的监测工作提供数据信息支持。论文整理了近几年关于光学遥感观测技术应用于建筑高度监测的文献,对分类法、边缘检测法、阈值法进行介绍和总结,说明光学遥感观测技术在IDI保险行业中有较高的应用价值和广阔的应用前景。     

Modeling Disinterest and Dislike: A Bounded Bayesian Mixed Logit Model of the UK Market for GM Food

Mixed logit models represent a powerful discrete choice analytical model but require assumptions about the functional form of the parameter distributions. The use of unbounded distributions, such as the normal distribution, may be regarded as unsuitable where theory indicates that all are negatively affected by increases in an attribute, such as price. Bounded distributions such as the triangular and log-normal are unable to model the case where a section of the population is indifferent towards an attribute, while the remainder are negatively disposed toward it. Train and Sonnier’s bounded mixed logit model accommodates these features and is employed in this paper. A censored normal and Johnson’s S_b distribution are used to model preferences in the UK for food attributes, including price and GM technology. Bi-modal distributions are identified regarding GM food: some are unlikely to ever consume it, some are close to indifference and willing to consume at relatively small discounts while the remainder are fairly unresponsive to further price reductions.     

Economic reforms,efficiency and productivity in Chinese banking

This paper analyzes the impact of banking reforms on efficiency and total factor productivity (TFP) change in Chinese banking industry. Using an input distance function, we find that joint-equity banks are more efficient than wholly state-owned banks (WSOBs). Furthermore, both WSOBs and joint-equity banks are found to be operating slightly below their optimal size, suggesting potential advantages in expansion of their businesses. Overall, TFP growth was 4.4% per annum for the sample period 1993–2002. Joint-equity banks experienced much higher growth in TFP (5.5% per annum) compared to the WSOBs (1.4% per annum).      

Quantitative growth effects of subsidies in a search theoretic R&D model

Should government subsidize R&D and does it matter how these subsidies are allocated? We examine these questions in a dynamic model where R&D is described as sequential sampling from a distribution of new ideas. Successful discoveries affect future available resources and incentives for further R&D. Consequently, there may be under-investment in R&D. We study the effect of government interventions aimed at fostering growth through R&D. Calibrating the model with aggregate data from the Israeli business sector allows us to quantitatively compare two forms of support resembling those actually used to encourage R&D in the Israeli business sector: (i) an unrestricted subsidy that may be used at the recipients' discretion to finance R&D or other investments, (ii) a subsidy earmarked by the government for R&D activities only. While there is no theoretical way to determine which of the two subsidies will have a greater impact on search for new ideas and growth, we find that in the calibrated economy both subsidies have a significant but similar impact on the economy's output and TFP growth rates. Accordingly, in the case of the Israeli business sector, the incentives to conduct R&D were sufficiently strong, and no R&D-specific encouragement was needed. However, a sensitivity analysis reveals that for economies characterized by other parameter values this result may not be true. Correspondence to: B. Bental     

中国人口老化、退休金缺口与农村养老保障

本文对中国人口老龄化的主要特征与养老金缺口的严重问题进行了概要的分析，并讨论建立农村储备积累式养老保障制度的必要性、紧迫性与可行性。本文认为，我们必须充分利用今后20年左右劳力资源丰富、少儿抚养比下降、老年抚养比仍然较低的“人口红利”机遇，大力发挥我国在劳力密集型产业方面的比较优势，努力建立农村社会养老保障体系。以应对2025年之后人口老龄化高峰期到来的严峻挑战以及扭转出生性别比与女婴死亡率大幅超常偏高的危险倾向。