中国经济增长与环境污染--基于广义脉冲响应函数法的实证研究

本文运用基于VAR模型的广义脉冲响应函数法与方差分解法,考察了我国1985-2003年期间6类环境污染指标与人均GDP之间的长期动态影响特征.冲击响应分析结果表明,一方面经济增长是影响我国污染排放的重要原因,另一方面环境污染对经济增长也存在着反向作用,然而后者具有一定滞后效应.方差分解结果显示人均GDP是解释各类污染排放的预测方差的重要变量,然而污染排放对经济增长的预测方差贡献度则相对较小.     

深圳成分指数收益率的VAR分析

根据VAR理论和计算方法,利用我国成份指数为研究对象,分析我国深圳成份指数的VAR值,并进行比较分析,最后给出相应的结论。     

信用计量技术及其在我国的应用分析

信用计量(CreditMetrics)是目前国际金融界最为流行的信用风险内部管理模型之一,已被BIS纳入银行业信用风险的监管框架。本文在引进CreditMetrics技术的基础上,详细分析了该技术的缺陷,并提出改进方向。最后,文章尝试性的探讨了该技术在我国的应用,并提出一些建议。     

Granger causality of the inflation–growth mirror in accession countries*

The paper presents a model in which the exogenous money supply causes changes in the inflation rate and the output growth rate. While inflation and growth rate changes occur simultaneously, the inflation acts as a tax on the return to human capital and in this sense induces the growth rate decrease. Shifts in the model's credit sector productivity cause shifts in the income velocity of money that can break the otherwise stable relationship between money, inflation, and output growth. Applied to two accession countries, Hungary and Poland, a VAR system is estimated for each that incorporates endogenously determined multiple structural breaks. Results indicate Granger causality positively from money to inflation and negatively from inflation to growth for both Hungary and Poland, as suggested by the model, although there is some feedback to money for Poland. Three structural breaks are found for each country that are linked to changes in velocity trends, and to the breaks found in the other country.     

高速风力机折尾调速系统的分析与改进

本文研究一种结构极其简单的风力机调速系统.分析了它的特性,讨论了其主要参数对其性能的影响,指出了该糸统存在的不足之处并提出了改进的措施。     

The effects of unemployment and the business cycle on absenteeism

This study, apparently the first of its kind, looks at the relation between unemployment and absenteeism. It is hypothesized that high unemployment is associated with low absenteeism for two reasons: (1) when unemployment is high, layoffs are high and workers laid off are more likely to have been absence-prone than retained workers, and (2) when unemployment is high, currently employed workers, fearing job loss, will avoid absences to decrease their chances of becoming unemployed. Data from the Panel Study of Income Dynamics support both hypotheses.     

区域金融发展和经济增长差异的互动研究——以甘肃省为例

基于金融发展与经济增长理论，使用协整检验方法，对1985--2006年甘肃省金融发展和经济增长差异的关系做了实证研究。结果表明，甘肃省金融发展和经济增长差异存在长期均衡关系，金融发展加大了区域经济增长差异。最后，对实证结论做了探讨。     

The Comovement of US and UK Stock Markets

US and UK stock returns are highly positively correlated over the period 1918–99. Using VAR‐based variance decompositions, we investigate the nature of this comovement. Excess return innovations are decomposed into news about future dividends, real interest rates, and excess returns. We find that the latter news component is the most important in explaining stock return volatility in both the USA and the UK and that stock return news is highly correlated across countries. This is evidence against Beltratti and Shiller's (1993) finding that the comovement of US and UK stock markets can be explained in terms of a simple present value model. We interpret the comovement as indicating that equity premia in the two countries are hit by common real shocks.     

铝合金材料ε—N 曲线研究

本文分别采用 Manson—Coffin 公式和 Fu's 公式,对8条铝合金材料ε—N 曲线试验数据进行了分析、处理,并对两种公式所处理试验数据的绝对误差和相对误差作了比较。结果表明,Fu's 公式比著名的 Manson—Coffin 公式能更好地描述铝合金材料ε—N 曲线。而且 Fu's 公式还简化了ε—N 曲线的测试工作。     

外汇储备快速增加与物价指数变动

本文运用多变量向量自回归模型（VAR）的协整分析方法与向量误差修正模型对我国外汇储备与物价指数之间的关系进行了实证检验。结果表明。外汇储备与物价指数之阃存在正相关关系，且长期内存在稳定的均衡关系。同时，外汇储备的快速增长虽然对一般物价指数上涨的直接影响程度较小。但不能因此而忽视外汇储备对物价指数上涨的间接影响。