银行关系型业务经济学解释及其启示

与银行交易型业务以及资本市场的直接融资相区别,银行关系型业务与客户有着特殊、密切的关系。本文立足于现代金融中介理论对银行关系型业务展开分析,并在此基础上提出对我国商业银行业务经营管理的指导建议。     

官督商办企业:由传统向近代企业制度演进的过渡性组织形态

从19世纪70年代起,官督商办企业在近代中国活跃了30余年。然而,这种组织形式并没有作为独立的组织制度存在,而是近代工业企业由传统的手工作坊向现代的股份制公司制度发育的过程,是一种过渡型“准企业”组织形式。本文试图从官督商办企业创建的起因、运行方式及发展结果三个方面来阐述和解答这个问题。     

教养方式对不同性别学前儿童羞怯的影响：基于模糊集定性比较分析（fsQCA）

为探讨父母教养方式对不同性别学前儿童羞怯的组合作用路径,研究采用模糊集定性比较分析（fsQCA）,考察了532名学前儿童的性别和教养方式四个维度（说理、随和、命令、言语攻击）共5个条件变量影响儿童羞怯的条件组态。结果发现：1）单个父母教养方式不是影响学前儿童羞怯的必要条件,教养方式以组态的方式影响学前儿童羞怯;2）影响“儿童羞怯”的三条组合路径分别是“女孩*非说理”、“女孩*命令*言语攻击”、“非说理*命令”;影响“非儿童羞怯”的三条组合路径分别是“男孩*非言语攻击”、“说理*非说理*随和”。     

构建和谐铁路路风系统的理性选择

铁路路风是指铁路的行业风气,是铁路企业和铁路职工经营管理素质、理想纪律素养、职业道德风貌的外在表现,反映铁路企业管理水平和职工精神面貌的综合指标。铁路路风质量的优劣,集中反映在铁路运输产品——旅客和货物的位移质量上。运输产品的全部质量特征包括安全、准确、舒适、迅速、经济、便利和文明服务等诸多方面。旅客和货主就是根据这些来全面判断路风质量优劣的。必须从整体上对路风质量实行全面控制,不能顾此失彼。     

不完全信息下的寻租博弈分析

从寻租过程中客观存在的信息的不完全和寻租人不同的风险态度出发,通过建立不完全信息下的寻租竞争博弈模型分析,得出当寻租方存在信息不对称、寻租人数无限增加时,寻租人会退出寻租竞争,导致寻租市场消失的结论.     

对阿多诺、霍克海默启蒙批判的几点反思

“启蒙辩证法”构成阿多诺、霍克海默启蒙批判的核心内容,尽管有其深刻与独到之处,但他们把对理性的局限性的批判变成了对理性的绝对批判。对启蒙的批判早在启蒙时代即已开始,哈曼与雅各比对启蒙运动的哲学基础的怀疑所显出来的思想深度并不亚于“启蒙辩证法”; 启蒙理性并不完全等于神话,它还具有“综合—分析”的方法论优势,这种优势导致霍布斯与孟德斯鸠的政治自由主义;启蒙理性也并不必然导致工具理性,对工具理性背后的科学主义、资本主义工商逻辑的批判如果依托一个混沌不明的价值立场,将无法预言与建构未来。     

Cox regression of clustered event times with covariates missing not at random

Motivated by a recent tuberculosis (TB) study, this paper is concerned with covariates missing not at random (MNAR) and models the potential intracluster correlation by a frailty. We consider the regression analysis of right‐censored event times from clustered subjects under a Cox proportional hazards frailty model and present the semiparametric maximum likelihood estimator (SPMLE) of the model parameters. An easy‐to‐implement pseudo‐SPMLE is then proposed to accommodate more realistic situations using readily available supplementary information on the missing covariates. Algorithms are provided to compute the estimators and their consistent variance estimators. We demonstrate that both the SPMLE and the pseudo‐SPMLE are consistent and asymptotically normal by the arguments based on the theory of modern empirical processes. The proposed approach is examined numerically via simulation and illustrated with an analysis of the motivating TB study data.     

Conditional design of the EWMA median chart with estimated parameters

The exponentially weighted moving average (EWMA) chart is often designed assuming the process parameters are known. In practice, the parameters are rarely known and need to be estimated from Phase I samples. Different Phase I samples are used when practitioners construct their own control chart's limits, which leads to the “Phase I between-practitioners” variability in the in-control average run length (ARL) of control charts. The standard deviation of the ARL (SDARL) is a good alternative to quantify this variability in control charts. Based on the SDARL metric, the performance of the EWMA median chart with estimated parameters is investigated in this paper. Some recommendations are given based on the SDARL metric. The results show that the EWMA median chart requires a much larger amount of Phase I data in order to reduce the variation in the in-control ARL up to a reasonable level. Due to the limitation of the amount of the Phase I data, the suggested EWMA median chart is designed with the bootstrap method which provides a good balance between the in-control and out-of-control ARL values.     

Sex differences in the development of mild cognitive impairment and probable Alzheimer’s disease as predicted by hippocampal volume or white matter hyperintensities

This study examined biological sex differences in the development of mild cognitive impairment (MCI) and probable Alzheimer’s disease (AD) development as predicted by changes in the hippocampus or white matter hyperintensities. A secondary data analysis of the National Alzheimer’s Coordinating Center Uniform Data Set was conducted. We selected samples of participants with normal cognition at baseline who progressed to MCI (n = 483) and those who progressed to probable AD (n = 211) to determine if hippocampal volume or white matter hyperintensities (WMH) at baseline predicted progression to probable AD or MCI and whether the rate of progression differed between men and women. The survival analyses indicated that changes in hippocampal volumes affected the progression to probable AD (HR = 0.535, 95% CI [0.300–0.953]) only among women. White men had an increased rate of progression to AD (HR = 4.396, CI [1.012–19.08]; HR = 4.665, 95% CI [1.072–20.29]) compared to men in other race and ethnic groups. Among women, increases in hippocampal volume ratio led to decreased rates of progressing to MCI (HR = 0.386, 95% CI [0.166–0.901]). Increased WMH among men led to faster progression to MCI (HR = 1.048. 95% CI [1.011–1.086]). Women and men who were older at baseline were more likely to progress to MCI. In addition, results from longitudinal analyses showed that women with a higher CDR global score, older age at baseline, or more disinhibition symptoms experienced higher odds of MCI development. Changes in hippocampal volumes affect the progression to or odds of probable AD (and MCI) more so among women than men, while changes in WMH affected the progression to MCI only among men.