电子货币对M1和M2的货币乘数影响及比较分析

随着电子货币的迅速发展,对货币乘数产生了深刻的影响,极大地影响到了现有的货币供给和货币政策.面对着货币介质的变化,中央银行必须不断调整传统的政策手段,来适应电子货币给现行金融体系带来的变革.     

Identifying Social Interactions Through Conditional Variance Restrictions

This paper proposes a new method for identifying social interactions using conditional variance restrictions. The method provides a consistent estimate of the social multiplier when social interactions take the “linear‐in‐means” form (Manski (1993)). When social interactions are not of the linear‐in‐means form, the estimator, under certain conditions, continues to form the basis of a consistent test of the no social interactions null with correct large sample size. The methods are illustrated using data from the Tennessee class size reduction experiment Project STAR. The application suggests that differences in peer group quality were an important source of individual‐level variation in the academic achievement of Project STAR kindergarten students.     

抽水蓄能电站建设对经济拉动效应的实证研究

抽水蓄能电站建设可以为项目建设区域带来相应的经济效应．为了科学定量地分析这一经济拉动效应,提出了选用投入产出模型作为抽水蓄能电站建设投资在生产环节经济拉动效应的测算方法,采用了边际消费倾向作为在消费环节由于抽水蓄能电站建设投资使居民收入增加导致消费需求增加而产生乘数效应的计算方法,并对某抽水蓄能电站建设期间为项目建设区域带来的经济效应进行了定量测算．该研究是关于抽水蓄能电站等基础设施建设对经济拉动效应展开定量研究进行的一次有益尝试．     

基于生存分析法的中国政策性农作物保险费率研究

为探索生存分析法对中国政策性农业保险纯费率厘定的适用性,采用辽宁省盘锦市1987—2008年的水稻、玉米和高粱作物单产数据,分别运用生存分析模型计算出75％产量保障水平的基础风险与巨灾风险概率,进而厘定出三种作物保险纯费率分别为3．0％、3．7％、3．7％。结果表明：该方法可以有效解决国内作物保险纯费率厘定过程中的巨灾风险厘定难题,将对中国政策性农业保险定价与补贴政策提供科学的研究依据。     

我国宏观经济乘数效应的实证分析

近年来,由于居民边际消费倾向急剧下降,我国宏观经济乘数效应几乎消失,投资对国民经济的推动作用越来越差。促进经济发展必须想方设法提高居民边际消费倾向,降低边际进口倾向和税费率。     

企业规划与信息系统规划战略一致性实证研究

以战略匹配模型(SAM) 及其在企业活动中的过程模型为研究对象,探讨了企业规划(BP) 和信息系统规划( ISP) 战略一致性程度与企业内外环境、企业所采取的竞争战略方向、ISP 的战 略地位以及IT 对企业业绩的贡献等因素间的关系,并运用中国企业数据进行了实证分析. 结 果表明,企业高层的战略规划意识以及利用IT 整合企业资源的能力与BP2ISP 战略一致性程度 和企业业绩密切相关,是企业获取竞争优势的重要因素.     

Specification tests in ordered logit and probit models

In this paper, I study the application of various specification tests to ordered logit and probit models with heteroskedastic errors, with the primary focus on the ordered probit model. The tests are Lagrange multiplier tests, information matrix tests, and chi-squared goodness of fit tests. The alternatives are omitted variables in the regression equation, omitted varaibles in the equation describing the heteroskedasticity, and non-logistic/non-normal errors. The alternative error distributions include a generalized logistic distribution in the ordered logit model and the Pearson family in the ordered.     

TESTS FOR SEASONAL DIFFERENCING WITH AN UNKNOWN BREAK-POINT

Some Lagrange multiplier tests for seasonal differencing are proposed; their main objective is to avoid over-differencing due to structural change. The null hypothesis is either the presence of both regular and seasonal unit roots or the presence of a seasonal unit root. Alternative hypotheses allow for stationarity around a possible structural change where the break-point is unknown. The location of the structural change is estimated using the proposed procedures, the asymptotic distribution of the test statistics under the null hypothesis is derived and some useful percentiles are tabulated. An illustrative example based on the Canadian Consumer Price Index is presented.     

Influence and residuals in restricte generalized linear models

A particular influence measure for restricted regression models is reviewed in this paper. We give em- phasis on establishing regularity conditions to apply the proposed influence measure in restricted gen- eralized linear models. The development of conditional residuals is also discussed. In particular, a sim- ulation study was conducted in order to compare the distributions of the proposed residuals for various generalized linear models. Finally, an application is given.