我国农险公司经营状况及其差异性

运用随机前沿和熵权逼近理想解的方法,研究我国农险公司2012年的经营状况问题。研究表明：农险公司技术效率和竞争力水平均较低,服务三农的能力有待进一步提升;企业规模、注册区域、经营内容、上市情况和所有权归属等都是影响农险公司经营状况的重要因素。为了提升公司的技术效率和竞争力水平,农险公司应重点关注经营费用投入的管理和营运能力的提升。     

A Nonparametric Test Procedure Based on Quantiles for the Right Censored Data

In this study, we propose nonparametric tests using the several quantile statistics simultaneously for the right censored data. First of all, we consider statistics of the quadratic form with estimated covariance matrices. Then we derive the limiting distribution using the large sample approximation theory. Also we consider different forms of statistics such as the maximal and summing types with their limiting distributions. Then we illustrate our procedure with examples and compare performance among tests with empirical powers through a simulation study. Also we comment briefly on some interesting features including re-sampling methods as concluding remarks. Finally in Appendices, we provide proofs for the theoretic results needed for the derivation of the limiting distributions of the proposed test statistics.     

基于VAR模型的安徽省粮食产量影响因素的实证研究

自然条件、政策环境、经济因素、技术进步等因素都会影响粮食产量。选取安徽省1990-2012年影响粮食生产的7个因素,最初,使用前向逐步回归分析的方法研究发现,对粮食产量影响较大的因素有粮食成灾面积、有效灌溉面积、化肥施用量3个变量。其次,Johansen协整检验阐释了这3个变量与粮食总产量之间的关系,并构造脉冲响应函数及进行方差分解得出这3个变量对总产量的贡献度为：粮食成灾面积〉化肥施用量〉有效灌溉面积。所以,增强农业工程的防灾减灾效果,提升农田水利基础设施的使用效率,科学控制化肥施用量对提高安徽省粮食综合生产能力具有重大作用。     

The Development of a Screening Tool for the Adult Children of Alcoholics Traits (STACAT)

In order to develop a valid tool for screening the traits of adult children of alcoholics (ACOA), this study focused on finding common characteristics among ACOA and developing a tool based on those characteristics. An item pool was generated targeting three distinct characteristics discussed in the alcohol literature related to ACOA, and the items were reviewed by a panel of experts. Using data from the sample, a confirmatory factor analysis, t -test and correlation analysis were conducted to gather various validity evidences for the screening tool. Cronbach's coefficient alpha test was used to check the internal consistency of the tool. The evidence of the reliability and validity for the ACOA traits screening tool provide the social work practice with an empirically validated method of measuring these traits in the children of alcoholics.     

论辅导员博客在新时期学生工作中的作用

博客是辅导员开展学生工作的有效方式之一。高校扩招,弹性学制与学分制,价值观和文化多元化的态势等教育对象与教育环境的变化是辅导员博客产生的原因。辅导员在实际工作中运用博客有利于把握学生思想动态,增进师生交流;有利于提高班级管理效率,增强思想政治教育的实效性;有利于同行之间交流学习,促进辅导员成长;有利于辅导员非权力性影响力的提升。辅导员博客要明确主题,把握博客更新速度;选择优势网站,加大博客宣传;丰富内容,提高博文质量;建立评估机制,发挥教育合力。     

关于朱智贤儿童心理学基本理论的研究

朱智贤专长儿童心理学,他几十年来坚持用辩证唯物主义的观点研究儿童心理学中重大的理论问题,主要阐述朱智贤关于儿童心理学的学科特性、研究对象以及研究方法等基本理论问题的认识与研究。     

Import competition and job displacement: A case study of Korean manufacturing industries

This paper investigates the impact of import competition on job displacement in Korean manufacturing industries. Using a regression model for the period of 1993–2003, the empirical results show that import competition raises the job displacement rate in the Korean manufacturing sector but the elasticity is negligible in its magnitude. Worker characteristics, such as gender, age, job tenure, and education level, proved to be significant in determining the displacement rate. Characteristics of displaced workers in high import-competing industries are also investigated based on the survey data. Workers who lost their jobs in these sectors were slightly older, less educated, and had longer job tenure than the workers in the other groups.     

浅析生态城市

“生态城市”是在联合国教科文组织发起的“人与生物圈”计划研究过程中提出的一个概念。生态城市有着不同于传统城市的特点,强调社会、经济、自然的协调发展。生态城市的本质是实现城市经济、社会、环境的共赢。针对我国城市化建设中出现的问题,确立建设生态城市的必然性,进而探讨我国建设生态城市的对策。     

Single Parenthood and Children’s Reading Performance in Asia

Using the data from Program for International Student Assessment, I examine the gap in reading performance between 15‐year‐old students in single‐parent and intact families in 5 Asian countries in comparison to the United States. The ordinary least square regression analyses show negligible disadvantages of students with a single parent in Hong Kong and Korea, once students’ demographic characteristics and socioeconomic background are held constant. Students in single‐parent families in Indonesia and Thailand outperform their peers in intact families. The negative effect of single parenthood remains significant in Japan, even after parent‐child communication is controlled. Interpreting the weak effect of single parenthood in the Asian countries, I consider extended family systems and the relatively high proportion of widowhood among causes of single parenthood.