Assessment of modeling longitudinal binary data based on graphical methods

Longitudinal categorical data are commonly applied in a variety of fields and are frequently analyzed by generalized estimating equation (GEE) method. Prior to making further inference based on the GEE model, the assessment of model fit is crucial. Graphical techniques have long been in widespread use for assessing the model adequacy. We develop alternative graphical approaches utilizing plots of marginal model-checking condition and local mean deviance to assess the GEE model with logit link for longitudinal binary responses. The applications of the proposed procedures are illustrated through two longitudinal binary datasets.     

上海西南地区形成发展热点研究

强化上海西南地区发展特质,应以先进制造业引领打造长三角制造业标杆,建设"上海制造"品牌重要承载区.加快头部企业和高端人才引入,提升产业链带动能力.在企业引入方面,推进"生物医药、美丽健康、绿色化工、节能环保、新型显示、集成电路"为核心的具有牵引力和影响力的重大项目向该区域高度集聚,建设高品质产业集聚区,扩大头部企业在沪产能.借助产业联盟等形式,建立园区内企业供需对接、政企交流平台,打造稳固的产业生态.     

Nonparametric Bayesian inference for multivariate density functions using Feller priors

Multivariate density estimation plays an important role in investigating the mechanism of high-dimensional data. This article describes a nonparametric Bayesian approach to the estimation of multivariate densities. A general procedure is proposed for constructing Feller priors for multivariate densities and their theoretical properties as nonparametric priors are established. A blocked Gibbs sampling algorithm is devised to sample from the posterior of the multivariate density. A simulation study is conducted to evaluate the performance of the procedure.     

摩天时代背景下当代城市建设的反思

摩天大楼成为近年来中国城市建设的重要特征。摩天大楼时代到来的同时，也带来了高楼建筑的社会问题，如安全问题、能原消耗问题、投资风险等。欧洲城市在建造高楼方面，保持了克制与理智的态度，欧洲国家纷纷制定各种法令限制摩天大楼的建设。作为河北省省会城市，2008年开始的“三年大变样”，使石家庄的城市建设步入摩天时代。2012年，石家庄市城乡规划局出台了《石家庄市城市风貌特色管理暂行规定》，石家庄将加强城市风貌特色管理，提高城市品位。人与高楼的和谐共融才是城市建筑存在的重要意义，如此，高楼大厦才会有灵魂，城市才会有未     

论伊德的科学价值观

伊德"非中性"的科学价值观揭示的是科学的本体论意义上的价值维度,而传统的科学价值观是事实与价值分离的"中性论"的价值观。伊德认为,传统的科学的价值观没有深入到本体论、生成论意义层次,是缺乏深度的知识论意义上的价值观。停留于此基础上的价值观,难免导致科学的"乌托邦"或"敌托邦"。     

CEO–TMT exchange,TMT personality composition,and decision quality: The mediating role of TMT psychological empowerment

This research draws on the upper-echelons perspective to examine the effects of CEO–top management team (TMT) exchange quality and TMT personality composition on decision quality through the mediation of TMT psychological empowerment. Using survey data from more than 700 executives in 210 firms in a Middle Eastern country and adopting a split-data approach, we find that CEO–TMT exchange quality can advance TMT psychological empowerment. We also find that TMT neuroticism has a negative effect on TMT psychological empowerment, while TMT conscientiousness, extraversion, agreeableness, and openness have positive effects. Moreover, TMT psychological empowerment plays a mediating role in linking CEO–TMT exchange quality and TMT personality composition with decision quality. Our research contributes to the upper-echelons, leader–member exchange (LMX), and decision-making literature by drawing attention to the social dynamics between CEO and TMT members, as well as the psychological characteristics and psychological states of TMT members, and their implications for strategic decisions.     

《蝴蝶君》的个人主体性研究

对于华裔美国作家黄哲伦舞台剧《蝴蝶君》的讨论,普遍着重于后殖民与性别的相关议题。本文则以个人的主体性为主要关注,并肯定本剧实为一出浪漫悲剧。试图借由黑格尔对于浪漫精神的定义与解说,用以诠释加利马在剧中的幡然醒悟,尤其是最后以死明志,透过否定的否定,在其内在的和解,亦即在绝对的精神主体里肯定自身的存在价值,体现黑格尔所谓的浪漫精神。     

Local estimation for varying-coefficient models with longitudinal data

Varying-coefficient models are very useful for longitudinal data analysis. In this paper, we focus on varying-coefficient models for longitudinal data. We develop a new estimation procedure using Cholesky decomposition and profile least squares techniques. Asymptotic normality for the proposed estimators of varying-coefficient functions has been established. Monte Carlo simulation studies show excellent finite-sample performance. We illustrate our methods with a real data example.     

研发模式对企业创新的影响——知识基础的调节作用

 在创新日益呈现出复杂性、系统性和不确定性的背景下，企业对合作研发和内部研发两种研发模式的合理选择及组合运用是提升创新效果的重要途径，但目前的相关研究仍存在一定局限性。一方面，合作研发和内部研发两种研发模式对不同类型创新(如突破式创新和渐进式创新)的影响机理和影响效果是否存在差异还未被厘清；另一方面，企业层面特征(如知识基础)对企业研发模式与企业创新关系的调节作用在已有研究中较少涉及。        针对上述研究现状和现实背景，整合知识基础观和创新管理相关理论，采用层级回归分析方法，收集310家制造企业数据，进行实证分析，研究企业合作研发和内部研发对其突破式创新和渐进式创新绩效的作用机理，以及知识深度和知识宽度对企业研发模式与企业创新关系的调节作用。        研究结果表明，相对于内部研发，合作研发对突破式创新绩效的影响更突出；相对于合作研发，内部研发对渐进式创新绩效的作用更为明显。知识深度在合作研发对突破式和渐进式创新绩效的影响中起正向调节作用，并正向调节内部研发与渐进式创新绩效的关系，但负向调节内部研发与突破式创新绩效的关系；知识宽度在内部研发对突破式和渐进式创新绩效的影响中起正向调节作用，并正向调节合作研发与突破式创新绩效的关系，负向调节合作研发与渐进创新绩效的关系。        在理论层面，考虑了不同研发模式对不同创新类型的影响，丰富了研发模式与企业创新领域的研究成果；引入知识基础作为调节变量，也为研发模式与企业创新之间权变因素的研究做出增量贡献；跳出了相关研究中关于合作研发与内部研发究竟是替代性还是互补性关系的争论，为后续研究提供了新思路。在管理实践层面，企业应根据自身的知识基础以及期望提升的创新类型来选择合适的研发策略。     

Complete moment convergence and Lr convergence for asymptotically almost negatively associated random variables

In this paper, we investigate the complete moment convergence and L_r convergence for maximal partial sums of asymptotically almost negatively associated random variables under some general conditions. The results obtained in the paper generalize some corresponding ones for negatively associated random variables.