房地产业的宏观调控研究

近年来我国房地产业出现了快速发展的过热现象,其原因复杂。2004年中央开始有针对性地对房地产行业进行宏观调控,但过去的和现有的政策只具有明显的短期效应。因此,各级政府必须从房地产行业目前的机制与现存的问题出发,建立与市场经济相适应的房地产业宏观调控的长效机制,真正使房地产业长期稳定健康的发展。     

构建和谐社会中的收入分配问题

当前我国社会收入分配问题的症结不是在于基尼系数所表达的分配结果不均,而是在于机会不平等的过程中产生的分配不公。能否处理好不同范畴的收入分配问题,特别是因滥用公共权力引起的社会分配不公,则关系到改革、发展、稳定的大局。社会需要通过改革有效调整已经形成的社会收入分配格局,使之能够朝着公平、正义的方向演变,这是构建和谐社会中亟待解决的关键问题之一。     

云南省义务教育经费支出效率的城乡差异分析

通过比较2003—2008年云南城乡义务教育经费投入产出,发现城乡义务教育经费支出本身存在较大差异,城镇投入明显高于农村。进一步采用DEA评价方法对其原因进行验证,发现农村义务教育经费支出效率较低,主要表现为没有合理利用好增加的投入而导致的规模无效。因此,未来云南缩小城乡义务教育差距的重点在于找准农村义务教育发展的欠缺,合理配置资金,提高资金的使用效率。     

西部股票市场绩效研究与发展建议

研究西部股票市场对西部经济发展的作用与影响，认为提高西部股票市场的运作效率，有助于促进西部投资的增长。研究结果表明，要解决西部资金短缺状况，必须加快西部经济货币化进程，大力培育西部股票市场。     

Anderson's classification statistic based on a post-stratified training sample

The performance of Anderson's classification statistic based on a post-stratified random sample is examined. It is assumed that the training sample is a random sample from a stratified population consisting of two strata with unknown stratum weights. The sample is first segregated into the two strata by post-stratification. The unknown parameters for each of the two populations are then estimated and used in the construction of the plug-in discriminant. Under this procedure, it is shown that additional estimation of the stratum weight will not seriously affect the performance of Anderson's classification statistic. Furthermore, our discriminant enjoys a much higher efficiency than the procedure based on an unclassified sample from a mixture of normals investigated by Ganesalingam and McLachlan (1978).     

Tests of hypotheses based on ranks in the general linear model

A unified approach is developed for testing hypotheses in the general linear model based on the ranks of the residuals. It complements the nonparametric estimation procedures recently reported in the literature. The testing and estimation procedures together provide a robust alternative to least squares. The methods are similar in spirit to least squares so that results are simple to interpret. Hypotheses concerning a subset of specified parameters can be tested, while the remaining parameters are treated as nuisance parameters. Asymptotically, the test statistic is shown to have a chi-square distribution under the null hypothesis. This result is then extended to cover a sequence of contiguous alternatives from which the Pitman efficacy is derived. The general application of the test requires the consistent estimation of a functional of the underlying distribution and one such estimate is furnished.     

两种融资制度下金融中介效率比较

分析了金融中介在经济增长中的作用 ,以此给出评价金融中介效率的指标体系 ,并根据市场主导型和政府主导型两种融资制度的差异 ,对金融中介效率进行对比分析 ,认为政府主导型融资制度除了在储蓄动员方面有较高的效率外 ,在储蓄转化、资金配置和技术进步方面是缺乏效率的 ,而这正是中国今后融资体制改革的关键所在     

关于孟德斯鸠分权理论的几个问题

近代以前的西方分权理论表现为混合政体理论，其本质是阶级分权，平衡社会各阶级之间的利益。孟德斯鸠对分权理论的贡献是把自由与分权相联系，并具体提出了三权分立的方案。三权分立只是现代国家分权模式的一种，它一般适用于内忧外患较少的国家。要实现真正的三权分立与制衡，局部的权力混合交叉是必要的。议会制国家事实上是议行合一。分权除了防止权力的滥用外，还能提高政府的工作效率。     

On tail-ordering and comparison of failure rates

In this paper, we have studied some implications between tail-ordering (also known as dispersive ordering) and failure rate ordering (also called TP₂ ordering) of two probability distribution functions. Based on independent random samples from these distributions, a class of distribution-free tests has been proposed for testing the null hypothesis that the two life distributions are identical against the alternative that one failure rate is uniformly smaller than the other. The tests have good efficiencies as compared to their competitors.     

Tests for symmetry about an unknown value based on the empirical distribution function

A class of Kolmogorov-Smirnov and Cramér-von Mises type statistics for testing symmetry about an unknown value is described. These statistics are not distribution-free, however, and, indeed, are not readily amenable to calculation. A linear rank statistic analog of the first component of the Cramér-von Mises type statistic is investigated. Asymptotic non-null properties of these procedures in the normal case are studied, and an efficiency comparison of the Cramér-vonMises statistic, the linear rank statistic analog, the modified Wil-coxon statistic, and the likelihood ratio test is reported.