中国高技术开发区的类型与建设布局研究

本文通过简要分析阐述了我国高新技术开发区的五种类型,及三类布局形式与地理分布概况,并指出开发区建设对中国２１世纪中叶成为世界级经济大国的战略意义。     

EMPIRICAL PERFORMANCE OF GARCH MODELS WITH HEAVY‐TAILED INNOVATIONS

We introduce a new type of heavy‐tailed distribution, the normal reciprocal inverse Gaussian distribution (NRIG), to the GARCH and Glosten‐Jagannathan‐Runkle (1993) GARCH models, and compare its empirical performance with two other popular types of heavy‐tailed distribution, the Student's t distribution and the normal inverse Gaussian distribution (NIG), using a variety of asset return series. Our results illustrate that there is no overwhelmingly dominant distribution in fitting the data under the GARCH framework, although the NRIG distribution performs slightly better than the other two types of distribution. For market indexes series, it is important to introduce both GJR‐terms and the NRIG distribution to improve the models’ performance, but it is ambiguous for individual stock prices series. Our results also show the GJR‐GARCH NRIG model has practical advantages in quantitative risk management. Finally, the convergence of numerical solutions in maximum‐likelihood estimation of GARCH and GJR‐GARCH models with the three types of heavy‐tailed distribution is investigated.     

我国城镇居民收入分配差距的实证研究

笔者首先计算了几种度量收入分配差距的指标,从不同角度的分析得到了我国城镇居民收入分配差距不断扩大的结论;其次估计了我国城镇居民的基尼系数.通过计量经济模型,检验了高、中、低各阶层可支配收入与收入分配差距之间的关系,得出结论:增加中低收入阶层的可支配收入,遏制高收入阶层可支配收入,可以减小基尼系数,从而降低收入分配差距;进一步通过模型发现,我国发达地区的经济发展和收入分配差距呈现出倒U型规律,说明经济发展达到一定水平,收入分配差距有望缩小.     

The Great Recession,Austerity and Inequality: Lessons from Ireland

The advent of the Great Recession and the widespread adoption of fiscal austerity policies have heightened concern about inequality and its effects. We examine how the distribution of income in Ireland—a country which experienced one of the most severe economic contractions—has evolved over the years 2008 to 2013. Standard cross‐sectional analysis of the income distribution shows broad stability in the Gini coefficient and in decile shares, with one main exception: the share of the bottom decile fell sharply, with the largest fall in average incomes being for that group. Longitudinal analysis shows that the falls in the average income for the bottom decile were not due to decreasing income for those remaining in the bottom decile, but to falls in income from those initially located in higher deciles. The extent of redistribution through taxes and transfers increased strongly, as measured by the Reynolds‐Smolensky index, which rose from 0.20 before the onset of the crisis to 0.27 in 2013. Analysis indicates that about three‐quarters of this increased redistribution is due to automatic stabilisers and one‐quarter to discretionary policy changes.     

基于VMI的中低压配网物资协议库存采购模式研究

协议库存采购是国家电网公司为提高中低压配电工程物资供应的时效性对配网的部分物资实行协议库存采购货物招标的一种新的采购模式。为提高供应商的准时供货率,保障物资供应,在供应商管理库存（VMI）的基础上,将电网企业的物资采购与库存方式相结合,提出了VMI协议库存采购模式及具体的实施方式。     

Interest and profit

This paper argues that it is important to distinguish between the real rate of interest on money and the profitability of business enterprise. The former is a purely financial or monetary phenomenon （as claimed by Keynes） and the latter is in the nature of a surplus over and above the costs of production, including financing costs. There is an inverse relationship between the real rate of interest on money and the average mark-up or profit share. A synthetic theory of profit illustrates these points.     

Demand for Redistribution: Individuals’ Responses to Economic Setbacks

Economic circumstances have been argued to be a major determining factor of attitudes toward redistribution, but there is little well‐established evidence at the individual level. The Swedish National Election Studies are constructed as a rotating survey panel, which makes it possible to estimate the causal effect of economic changes. The empirical analysis shows that individuals who lose their job become considerably more supportive of redistribution. Yet, attitudes toward redistribution return to their initial level as economic prospects improve, suggesting that the effect is only temporary. While a job loss also changes attitudes toward the political parties, the probability of voting for the left‐wing is not affected.     

三线铁路荷载作用下箱梁桥荷载横向分布系数

文章运用有限元程序对三线铁路预应力混凝土连续箱梁桥进行了模拟,分析了三线铁路荷载作用下箱梁的受力特性及在各种荷载工况下荷载横向分布规律,给出了荷载横向系数的实用值。     

城市流通系统:研究现状与一个综合性框架

现代流通产业的发展演变过程是伴随着现代城市的产生与发展过程进行的,现代城市是现代流通产业的载体,而城市则因为流通产业的发展而发展、壮大.因而,流通问题与城市问题是密不可分的.目前城市流通问题的研究集中在商业地理学领域,而传统流通理论则游离于该领域之外,这种游离造成了该领域研究的一些问题.本文在比较全面地回顾和评述了国内外学者对城市流通问题研究现状的基础上提出了一个综合性的研究框架,以期为城市流通问题的研究提供新的视角.     

浅析契约协调下的供应链利润分配方法

利润分配是供应链管理中的一个重要问题。文章通过分析协约协调条件下的供应链特点,总结契约协调下的供应链利润分配的思路和坚持的原则,最后概括了契约协调下供应链利润分配的简单模型。以期给供应链的合作企业提供合理利润分配方法的建议。