The Performance of Service Industries in Canada: A Real Value Analysis

The performance of service industries in Canada has been lower than that of good industries over the last four decades, with noticeable exceptions such as for railways and telecommunication carriers. Service industries were less economically (and technically) efficient in that they generated less output value (quantity) per hour worked (level and growth) or per combined unit of labour and capital (multifactor productivity growth) than good industries. The relative output price of services declined slightly over time compared with goods. At the disaggregated level, changing relative output prices were substantial and proved to be an important factor explaining the relative satisfactory economic performance of many service industries despite their low technical performance. Nevertheless, the output share of service industries increased over that period, sustained, mainly, by the growing recourse of all firms to outsourcing of services.     

通货膨胀的各种成因及其在我国的实证分析

本文不仅总结了当前主要的实证研究文献提出的我国通货膨胀的种种成因,而且对每种原因给予了比较分析和新的实证分析,并在此基础上尝试进行了综合分析,以得出一些有益的结论。     

改革开放以来广州经济增长因素分析

本文从实证角度建立计量模型,利用主成分分析方法和最小二乘回归的方法,对广州改革开放30多年以来的经济增长因素进行了具体分析,研究表明改革开放30多年来,广州经济增长的促进因素主要是劳动力数量的增长,经济制度的变革,产业结构的升级,以及人力资本增长的作用,物质资本不是促进广州经济增长的主要因素。     

DEA evaluations of long- and short-run efficiencies of digital vs. physical product “dot com” companies

This paper applies Data Envelopment Analysis to determine relative efficiencies between internet dot com companies that produce only physical products and those that produce only digital products. To allow for the fact that the latter are relatively inexperienced, a distinction is made between long- and short-run efficiencies and inefficiencies, with a finding of no statistically significant difference in the short run but digital product companies are significantly more efficient in the long run. A new way of distinguishing between long- and short-run performances is utilized that avoids the need for identifying the time periods associated with long-run vs. short-run efficiencies and inefficiencies. In place of “time,” this paper utilizes differences in the “properties” that economic theory associates with long- and short-run performances.     

The risk-return trade-off in human capital investment

In this paper, we analyze investments in human capital in a way which is standard for financial assets, but not (yet) for human capital assets. We study mean-variance plots of human capital assets. We compare the properties of human capital returns using a performance measure and by using tests for mean-variance spanning. Fields differ strongly not only in common rates of return, but also in return per unit of risk. We identify a range of educations that are efficient in terms of investment goods, and a range of educations that may be chosen for consumption purposes.     

我国证券投资基金业绩的持续性研究

以上海证券交易所上市的10只同质的基金为样本,分三个阶段对基金业绩的持续性进行了实证分析,结果表明我国证券投资基金的业绩并不具有持续性.     

基于能值分析的中国矿产资源可持续发展体系研究

可持续发展理论的研究,多是以环保为基础,促进经济增长的发展模式,是一种静态的发展理论.通过动态可持续发展的观点的提出,认为可持续发展包括生态资源环境发展、经济发展和社会发展3个组成部分,应把经济发展和社会发展建立在生态发展、资源发展和环境发展的基础上,把"重视环境保护"的静态发展观转变到"重视发展、环境保护为基础、发展是主题"的动态可持续发展观.并借助于能值分析理论,尝试探讨中国矿产资源的动态可持续发展的定量研究体系,为我国矿产资源的可持续发展提供政策建议.     

浅析多媒体技术在车辆工程教学中的应用

随着教育的发展 ,传统的教学方法已不能满足时代的需要 ,亟待运用现代教育技术手段 ,特别是多媒体的教学形式进入课堂 ,以发挥其特有的功能来提高学习效率。本文浅淡了如何在车辆工程教学中运用计算机多媒体的图、文、声、像并茂的特点 ,有效的激发学生的学习兴趣。     

基于多类SVM的网络故障诊断

在分析网络故障诊断的工作原理的基础上，提出基于多类支持向量机处理网络故障的方法，这种方法只需要小样本训练故障分类器便可进行多故障的识别和诊断。实验表明：利用本方法实现的系统在进行网络故障诊断时可取得较好的效果。     

试论我国会计国际化的一个可能途径

文章基于对会计本质的统计属性及会计对环境的依赖性的分析,提出我国会计国际化的一种可能的途径。从理性经济人的角度出发,文章认为我国会计国际化的进程取决于相关的成本效益的权衡,并对所提出的我国会计国际化的这种可能的途径进行初步的成本与效益分析。