Bootstrap-calibrated empirical likelihood confidence intervals for the difference between two Gini indexes

Measuring the difference between two Gini indexes is important in comparing the inequality between two groups. This paper systematically provides confidence intervals for this difference. First, normal approximation- and bootstrap-based confidence intervals are provided for the difference. Second, empirical likelihood (EL)-based confidence intervals are proposed according to a ratio statistic that is proven to have a weighted Chi-squared distribution with one degree of freedom. Third, two calibration approaches are established to improve the undercoverage issue of the EL method; these two approaches are augmented EL and bootstrap-calibrated EL. Monte Carlo simulations show that bootstrap-calibrated EL generally outperforms other methods in constructing confidence intervals. In the simulations, these methods are compared with the permutation method to test the equality of two Gini indexes. Lastly, these methods are applied to real data.     

Variable selection in partially linear additive models for modal regression

Based on B-spline basis functions and smoothly clipped absolute deviation (SCAD) penalty, we present a new estimation and variable selection procedure based on modal regression for partially linear additive models. The outstanding merit of the new method is that it is robust against outliers or heavy-tail error distributions and performs no worse than the least-square-based estimation for normal error case. The main difference is that the standard quadratic loss is replaced by a kernel function depending on a bandwidth that can be automatically selected based on the observed data. With appropriate selection of the regularization parameters, the new method possesses the consistency in variable selection and oracle property in estimation. Finally, both simulation study and real data analysis are performed to examine the performance of our approach.     

论晚期资本主义的主要面貌与基本矛盾——基于曼德尔的《晚期资本主义》

本文通过研究曼德尔的《晚期资本主义》一书,从三个方面论述了晚期资本主义的主要面貌与基本矛盾:部分有理性与整体无理性之间矛盾的激化与国家力量的增强,科技、脑力劳动的异化与技术理性主义的意识形态,消费社会与资本主义的基本矛盾。     

传统工艺与现代商品——文化产业进程中壮族绣球的传承与变迁

民族传统文化传承与变迁,是文化人类学研究的重要范畴.本文通过田野调查传统的壮族绣球并探寻绣球产业化发展的历程,试图借鉴布迪厄的场域理论,综合各项与绣球工艺发展相关的文化因素来分析绣球这一艺术样式传承与变迁的主要原因,进而对绣球工艺如何在当下发展提出了积极的思考.     

对"句町"及与之相关的西林地名的考释——兼谈广西西林曾为句町国政治中心

"句町"本义应是"红色的藤蔓".通过对"句町"及西林部分地名的考释,认为广西西林曾是古句町国政治中心.     

中法两国最高法院刑事审判职能比较研究

法国最高法院刑事审判职能主要体现在受理被告人不服各级法院终审判决而提起的撤销之诉和特定情况下的再审之诉,以维护法律的统一适用。我国最高人民法院刑事审判职能包括:受理高级人民法院的一审判决上诉,受理重大的一审案件,发动审判监督程序,并以发布司法解释的形式指导各级人民法院的审判。两国最高法院刑事审判职能相比,后者有若干不能有效维护法律统一适用的地方,进而影响了最高法院的权威。     

我国出口信用保险与出口贸易动态关系研究--来自沿海经济圈省际面板数据的经验证据

利用沿海经济圈省际面板数据作为样本,使用面板向量自回归模型研究了出口信用保险与出口贸易的动态关系。研究发现：出口信用保险在短期内能促进出口贸易,长期内不具有持续效应;出口贸易提高出口信用保险需求水平的能力有限。两者呈现出非对等关系,出现这一现象的主要原因是保险费率垄断。     

锌丝连铸机结晶器的研究

锌及其合金在现代工业中具有广泛的用途,连续铸锌的关键部件是锌结晶器,锌结晶器是一种有内热源的二维多态传热系统,其传热过程及其复杂.文章介绍了连铸型锌结晶器的结构,导出了锌结晶器的传热学数学模型,分析了结晶器的传热过程,并对锌丝连铸机组进行了试验研究.     

论新加坡模式与新加坡式民主

从历史传承角度来理解，新加坡模式一英国的制度＋东方的传统＋中国共产党的作风。源于英国的制度，新加坡政治制度大体继承了议会民主，从而表现出一定程度的让民做主；继承东方的传统，新加坡政府积极发展托管民主，从而表现出绩效显著的为民做主；学习中国共产党的作风，新加坡行动党注意贯彻群众路线，弘扬群众民主，从而表现出着力坚持的认民做主。     

酒店服务产品创新效果的模糊综合评价

在对酒店服务产品创新不同层次分析的基础上，运用多层次模糊综合评价方法给出了酒店服务产品创新效果评价的指标体系及评价过程，实现了对酒店服务产品创新效果的定量评价。