影响学生参加数学课外补习的因素——以中国上海和日本大都市为例

选取PISA2012数据，采用logit模型和HGLM模型研究影响中国上海和日本大都市学生参加数学课外补习的因素。研究发现：影响两个国家（地区）学生参加数学课外补习的因素主要为学生层面的因素，具体而言，女性的数学课外补习参与率高于男性，独生子女学生数学课外补习参与率高于非独生子女学生；ESCS和家庭教育资源充裕程度对学生参加数学课外补习有正向预测作用；数学成绩对数学课外补习参与的影响不确定。     

Simple inference in multinomial and ordered logit

This paper provides some simple methods of interpreting the coefficients in multinomial logit and ordered logit models. These methods are summarized in Propositions concerning the magnitudes, signs, and patterns of partial derivatives of the outcome probabilities with respect to the exogenousvariables. The paper also provides an empirical example illustrating the use of these Propositions.     

Logistic Regression and Discriminant Analysis by Ordinary Least Squares

If the observations for fitting a polytomous logistic regression model satisfy certain normality assumptions, the maximum likelihood estimates of the regression coefficients are the discriminant function estimates. This article shows that these estimates, their unbiased counterparts, and associated test statistics for variable selection can be calculated using ordinary least squares regression techniques, thereby providing a convenient method for fitting logistic regression models in the normal case. Evidence is given indicating that the discriminant function estimates and test statistics merit wider use in nonnormal cases, especially in exploratory work on large data sets.     

A Note On Beta Inverse-Weibull Distribution

The inverse Weibull distribution is one of the widely applied distribution for problems in reliability theory. In this article, we introduce a generalization—referred to as the Beta Inverse-Weibull distribution—generated from the logit of a beta random variable. We provide a comprehensive treatment of the mathematical properties of the Beta Inverse-Weibull distribution. The shapes of the corresponding probability density function and the hazard rate function have been obtained and graphical illustrations have been given. The distribution is found to be unimodal. Results for the non central moments are obtained. The relationship between the parameters and the mean, variance, skewness, and kurtosis are provided. The method of maximum likelihood is proposed for estimating the model parameters. We hope that this generalization will attract wider applicability to the problems in reliability theory and mechanical engineering.     

社会融合视角下中国老年流动人口居留意愿的影响因素

将老年流动人口视为同质性群体易忽视其个体主观能动性,因此从社会融合视角,利用潜在类别分析方法将老年流动人口进行分类,分为积极融合型和消极融合型。不同类型老年流动人口居留意愿选择偏好存在异质性,积极融合型老年流动人口更倾向于选择"长期居留"。对比其影响因素的差异,发现消极融合型老年流动人口"长期居留"意愿的影响因素明显增多。与全样本对比,潜在类别划分后的老年流动人口居留意愿受个人特征影响显著。针对较高的社会融入需求和不同的居留意愿,应统筹做好老年流动人口户籍需求和住房保障,积极推进老年流动人口养老服务能力建设,不断提升老年流动人口医疗卫生保障质量,开展老年流动人口示范街区建设,提高老年流动人口社会融合能力。     

农户营销合作意愿的影响因素分析——基于江西省1 085户农户的实证调查

以江西省1 085户农户问卷调查数据为基础,利用Logit模型对农产品营销中影响农户合作意愿的因素进行了计量经济分析。研究表明,农产品营销中农户的合作意愿与农产品生产集中度、农产品经营规模、农产品价格波动及政府支持等因素呈显著正相关关系;与销售难度、距离市场远近及农产品类型等因素呈一定的正相关关系;与户主风险态度等因素呈显著负相关关系;与文化程度因素关系不显著。基于上述结果,提出了相关政策建议。     

影响我国小学入学率提高的因素分析

对影响儿童入学的因素从宏观层面上进行了实证分析．通过把主要因素分为家庭背景和社会投入资源两大方面，利用Logit回归分析法，数据则采用同时包含时间序列和横截面的面板数据(Panel Data)．回归结果显示，在农村地区，父母受教育程度，社会对教育的投入，尤其是家庭经济状况，都对小学入学率的提高有正向作用．     

分行业的企业财务危机预警模型比较研究

世界各国学者分别用不同的统计模型对信用风险进行全行业的实证研究。中国在此方面的研究尚处起步阶段。综合运用多元判别模型、Logistic模型、主成分模型,分不同行业对企业财务危机进行预警研究。比较分析了不同行业预警模型的判别准确率,不同预警技术的判别准确率,多年度预警的可行性,预警模型的稳定性,大类、中类行业预警的通用性等问题。商业银行可以使用这些模型进行信用风险度量和信贷风险预警。     

Deletion diagnostics for marginal mean and correlation model parameters in estimating equations

Regression diagnostics are introduced for parameters in marginal association models for clustered binary outcomes in an implementation of generalized estimating equations. Estimating equations for intracluster correlations facilitate computational formulae for one-step deletion diagnostics in an extension of earlier work on diagnostics for parameters in the marginal mean model. The proposed diagnostics measure the influence of an observation or a cluster of observations on the estimated regression parameters and on the overall fit of the model. The diagnostics are applied to data from four research studies from public health and medicine.     

农民建房意愿的因素分析——基于全国3362个农户的调查分析

对全国21个省93个村3 362个农户进行问卷调查,阐述目前农村住房现状,并通过统计分析发现影响农民建房意愿的因素：建筑时间、房屋面积、家庭人口数、家庭类型,同时建立模型对各因素之间进行定量计算,并从中得到几点结论。