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171.
Estimation and Inference Procedures for Semiparametric Distribution Models with Varying Linear‐Index
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More flexible semiparametric linear‐index regression models are proposed to describe the conditional distribution. Such a model formulation captures varying effects of covariates over the support of a response variable in distribution, offers an alternative perspective on dimension reduction and covers a lot of widely used parametric and semiparameteric regression models. A feasible pseudo likelihood approach, accompanied with a simple and easily implemented algorithm, is further developed for the mixed case with both varying and invariant coefficients. By justifying some theoretical properties on Banach spaces, the uniform consistency and asymptotic Gaussian process of the proposed estimator are also established in this article. In addition, under the monotonicity of distribution in linear‐index, we develop an alternative approach based on maximizing a varying accuracy measure. By virtue of the asymptotic recursion relation for the estimators, some of the achievements in this direction include showing the convergence of the iterative computation procedure and establishing the large sample properties of the resulting estimator. It is noticeable that our theoretical framework is very helpful in constructing confidence bands for the parameters of interest and tests for the hypotheses of various qualitative structures in distribution. Generally, the developed estimation and inference procedures perform quite satisfactorily in the conducted simulations and are demonstrated to be useful in reanalysing data from the Boston house price study and the World Values Survey. 相似文献
172.
In this study, we investigate linear regression having both heteroskedasticity and collinearity problems. We discuss the properties related to the perturbation method. Important observations are summarized as theorems. We then prove the main result that states the heteroskedasticity-robust variances can be improved and that the resulting bias is minimized by using the matrix perturbation method. We analyze a practical example for validation of the method. 相似文献
173.
Given k( ? 3) independent normal populations with unknown means and unknown and unequal variances, a single-stage sampling procedure to select the best t out of k populations is proposed and the procedure is completely independent of the unknown means and the unknown variances. For various combinations of k and probability requirement, tables of procedure parameters are provided for practitioners. 相似文献
174.
Xianzheng Huang 《统计学通讯:理论与方法》2017,46(20):10071-10087
We propose a new method for smooth isotonic regression analysis. Unlike most existing methods for isotonic regression, the proposed method is akin to parametric regression without order restriction. To account for smoothness and isotonicity simultaneously, we exploit the flexible class of semi-non parametric densities to model isotonic regression functions. Under this framework, the full range of inference techniques for parametric regression models become applicable for model estimation and model validation in isotonic regression. 相似文献
175.
In this article we consider the Double Eleven shopping festival as a major discursive site where the hegemony of what we call patriarchal capitalism with Chinese characteristics is articulated. The state, the market, the corporations and the media, both mainstream and social media, all played an important role in building up a national spending spree that is deeply embedded in the current class and gender structure of China. The phenomenon of Double Eleven emerged at a time when state capitalism has been overwriting socialist institutions, while patriarchal ideology being further intensified through consumerism. As a consequence, the intersectionality of class and gender becomes increasingly manifest in the Chinese society. We start with a brief overview of the trajectory of gender politics in China since 1949, with specific focus on how the socialist project of seeking gender equality was gradually replaced by the quest for ‘womanhood’ and ‘femininity’. We then discuss, using both secondary sources and our own analysis of news coverage of Double Eleven, why maintaining a high level of consumer demand is of crucial importance for the Chinese state and what the state’s role has been in configuring the hegemonic gender order. A brief section on ideology and discourse lays out the conceptual framework of our analysis. It is at the intersection of a dissipating socialist ethos, emerging economic stagnation and ascending consumerism that the sexist discourse in relation to Double Eleven proliferates, and this is the analytical focus of our empirical section. We elaborate on the theoretical implications of the empirical analysis before concluding. 相似文献
176.
177.
网络化行动研究充分关照社会性世界中人的网络化生活,是一种特殊的文化认识活动,既涵指一种融"虚拟"和"实在"为一体的生存实践——网络化行动,又关涉对网络化生活的自觉反思——网络化行动的研究,同时还指涉以信息通讯技术为工具的思维创造——网络化的行动研究。它以人为本,追求实现文化主体的自主性,借助技术的社会化,满足多元的文化欲求。网络化行动研究蕴含着文化知识论基础,以承认地方性知识为前提,采用行动者网络理论,追求实用主义真理观。传统的东方伦理温情文化,为网络化行动研究引入东方及我国并获得创新性发展提供了沃土。 相似文献
178.
在西方国家量化宽松的货币政策背景下,一种呼唤金本位回归的声音日趋强烈。这在理念上与200年前大卫.李嘉图的货币理论和"金价论战"有着某种联系。尽管李嘉图混淆了纸币和贵金属货币以及银行券的不同属性和流通规律,然而他的货币理论,尤其是关于纸币发行必须受到约束的观点,至今仍有重大意义。后来西方国家在相当长历史时期内实行的金本位制度,很大程度上就体现了李嘉图的货币思想。今天不可能再回到金本位制度,但黄金的投资保值避险功能将更加明显。 相似文献
179.
谈及近十年来我国在发达城市大力推行的社区居家养老服务,很容易联想到已有半个多世纪发展历程的英国社区照顾,然而,本文并没有采取同类比较的手法去启发我国的社区居家养老服务,而是从西方学界对英国社区照顾近二十年来的争议与探讨着手,重点引入批判老年社会工作方法,对我国为老服务的输送环节在批判视域下做出更好的借鉴与反思. 相似文献
180.
WTO多哈回合谈判与中国的多边外交探析 总被引:1,自引:0,他引:1
WTO多哈回合谈判,是中国第一次以正式成员身份参加此类谈判方数量众多、议题广泛、旷日持久的大型多边经贸外交,它为中国全面学习、适应多边经贸外交的游戏规则并积极影响多边贸易体制的运行提供了宝贵契机。通过过去几年积极、务实、灵活的参与,中国在多哈回合谈判中发挥了重要的建设性作用。下一阶段,中国应采取有力措施切实加强自身与谈判有关的能力建设,同时采取市场准入议题和发展议题"两手抓"的策略,推动谈判的成功结束和多边贸易体制的健康、持续发展。 相似文献