金融危机背景下高校特困生政治思想现状及对策

调查结果显示,高校特困生政治思想状况的主流是积极、健康、向上的.但是受金融危机影响,部分特困生生活清贫,甚至难以维持基本的生活,并因此承受着巨大的思想负担和精神压力,受到自卑、攀比、虚荣、敏感等心理困扰.高校思想政治工作者应针对具体情况,深入分析其产生问题的原因,并从管理模式、教育方式、教育内容等方面,深入探索解决问题的具体对策.     

法庭话语的会话活动类型之语用分析

法庭话语属于机构话语,与普通话语相比,具有很强的动态性.从会话活动类型的角度出发,对法庭话语这一特殊的语篇进行动态的研究及探索,能揭示出法庭话语特殊的会话特征,恰当地解释法庭话语的即席性和互动性.     

韩国的金融政策与金融危机及对我国的警示

金融危机的爆发对经济发展的危害是巨大的,受这次金融风暴直接冲击的国家,其经济实力普遍倒退７至１０年。其中韩国因货币贬值五成,其经济规模已由世界排名第１２位降至第１７位,人均国民生产总值由１９９６年的１０５４８美元降至目前的６６６４美元,经济实力倒退了...     

Parameterization and inference for nonparametric regression problems

We consider local likelihood or local estimating equations, in which a multivariate function () is estimated but a derived function () of () is of interest. In many applications, when most naturally formulated the derived function is a non-linear function of (). In trying to understand whether the derived non-linear function is constant or linear, a problem arises with this approach: when the function is actually constant or linear, the expectation of the function estimate need not be constant or linear, at least to second order. In such circumstances, the simplest standard methods in nonparametric regression for testing whether a function is constant or linear cannot be applied. We develop a simple general solution which is applicable to nonparametric regression, varying-coefficient models, nonparametric generalized linear models, etc. We show that, in local linear kernel regression, inference about the derived function () is facilitated without a loss of power by reparameterization so that () is itself a component of (). Our approach is in contrast with the standard practice of choosing () for convenience and allowing ()> to be a non-linear function of (). The methods are applied to an important data set in nutritional epidemiology.     

煤炭资源开采中的生态环境经济损失及补偿研究

通过对CVM研究结论的比较讨论,认为基于CVM测算出的煤炭资源开采中的生态环境经济损失值偏小.为了全面计算煤炭资源开采中的生态环境经济损失值,提出将CVM与直接市场法和间接市场法联合使用,并计算出2010年榆林市煤炭资源开采的生态环境经济损失为208.4亿～209.11亿元.在此基础上,又对煤炭资源开采中的生态环境损失补偿问题进行研究,提出由煤炭资源开采企业和煤炭资源受益者共同承担煤炭资源开采中生态环境损失补偿的责任,并对各自应该分担的补偿水平进行量化.     

Model averaging for M-estimation

M-estimation is a widely used technique for robust statistical inference. In this paper, we study model selection and model averaging for M-estimation to simultaneously improve the coverage probability of confidence intervals of the parameters of interest and reduce the impact of heavy-tailed errors or outliers in the response. Under general conditions, we develop robust versions of the focused information criterion and a frequentist model average estimator for M-estimation, and we examine their theoretical properties. In addition, we carry out extensive simulation studies as well as two real examples to assess the performance of our new procedure, and find that the proposed method produces satisfactory results.     

A boundary kernel for local polynomial regression

We define and compute a boundary kernel for local polynomial regression, We prove that the new kernel provides improvement over the existing kernels, Simulations show the improvement in finite samples.     

Generalized Analysis-of-variance-type Test for the Single-index Quantile Model

In this paper, we are concerned with a test for the index parameter and index function in the single-index model. Based on the estimates obtained by the quantile regression, we extend the generalized analysis-of-variance-type test to the single-index model. We investigate the asymptotic behavior of the proposed test and demonstrate that its limiting null distribution follows an asymptotically χ²-distribution. The simulation studies and real data applications are conducted to illustrate the finite sample performance of the proposed methods.     

未观测经济：概念框架与测算思路

 经济合作与发展组织牵头编写的《未观测经济测算手册》对“未观测经济”的概念、分类原则、测算方法等做了较为详细的论述,本文根据其中的主要概念比较分析了官方公布的GDP与未观测经济之间的关系,目的是能在国际统计标准概念框架下更好地理解未观测经济、未测算经济、官方公布的GDP之间的关系与区别。     

朝核危机的最新发展态势及未来发展趋势

朝核问题的复杂性和谋求解决的困难程度关键在于朝美两个主要当事国之间的敌对关系及相互间不信任。朝核危机依然是威胁地区甚至全球安全最重要的因素之一，根据朝鲜过去多变善变的情况，六方会谈的前景依然迷雾重重，因而朝鲜半岛和东北亚局势今后将经历一段不确定时期；最大的可能性是谈，通过六方会谈机制，以外交谈判方式，和平解决朝核危机，实现半岛无核化，是解决朝核危机最理想的结果，也是六方会谈所要达到的最高目标；影响这一“最高目标”的两个因素是美国新政府有无对朝“新思维”、朝鲜有无“弃核”的意志。