冷战后欧洲安全的新特征——安全治理

冷战的结束改变了欧洲的安全结构,它标志着两极格局的瓦解,也标志着欧洲两大阵营军事对峙的结束。然而冷战的结束并不意味着欧洲安全问题的解决。与此相反,欧洲面临的是更分散、更无形的安全威胁。安全治理成为应对新时期欧洲安全挑战的一大创举。当前,欧洲安全治理呈现出区域性组织主导、多种行为体参与的特点,欧洲安全的有效治理有赖于欧洲主要区域性组织的合作与协调。     

面向应用型网络人才培养的实践教学改革初探

随着我国经济和社会信息化的飞速发展,社会特别是各类企业对网络建设和应用的需求日益普遍,对网络工程师、网络管理员等工作岗位的需求量不断增加,然而一大批IT学子却因不具备实用的网络技能被企业拒之门外,应用性网络人才的需求和培养之间形成了巨大落差。为了解决网络应用型人才供求关系之间的矛盾,本文在调研目前企业所需网络人才的知识能力与素质构成需求和分析当前高校网络实践教学现状的基础上,设计出具有较高可行性、针对培养应用型网络人才的实践教学模式。     

卖空制度、流动性与信息不对称问题研究——香港市场的个案

应用香港市场的案例,研究了引入卖空制度后个股的交易活跃程度、流动性、波动性与信息不对称的变化,提出了噪声交易者假说,即引入卖空制度后重要的变化是噪声交易者会出于对更高亏损可能的担心而退出交易或变得谨慎.实证结果发现:引入卖空制度会带来交易活跃程度下降、流动性下降以及信息不对称水平升高.同时,通过对知情交易概率(PIN)...     

提高员工工作满意度机制的系统分析:和谐管理理论的启示与价值

在企业经营管理实践中,如何提高员工的工作满意度是企业激励员工、进行有效的人力资源管理、保证企业长远发展的关键问题。针对这一问题,本文在回顾和分析现有关于工作满意度理论和实践的基础上,利用和谐管理理论提供的复杂管理问题的解决之道,即主题导向下的双规则互动耦合思路对于解决该问题的有益启示和帮助,结合某设计院提高员工工作满意度的实践,从优化完善相关制度与机制、营造能充分发挥员工能动性的工作氛围,以及围绕提高工作满意度这一主题的整合三个方面形成有机系统,从而构建了基于和谐管理理论的提高工作满意度的管理体系,为这一问题的解决提供了新的思路。     

生态文明背景下旅游地学与规划工程专业生态美育教学模式探索与实践

生态文明背景下对新工科旅游地学与规划工程专业开展系统生态美育教学具有重要意义,但目前相关教学实践和研究相对缺乏。在理论学习和实践调研的基础上,文章结合该专业学科特色和培养目标,对该专业学生进行了生态美育探索性教学,并调研了教学效果和不足之处,在此基础上构建了旅游地学与规划工程专业“理论教学—室内互动教学—室外实践教学”的三阶段式生态美育教学模式,可为该专业及相关专业的生态美育教学提供借鉴。     

Informal search,bad search?: the effects of job search method on wages among rural migrants in urban China

The use of informal job search method is prevalent in many countries. There is, however, no consensus in the literature on whether it actually matters for wages, and if it does, what are the underlying mechanisms. We empirically examine these issues specifically for rural migrants in urban China, a country where one of the largest domestic migration in human history has occurred over the past decades. We find that there exists a significant wage penalty for those migrant workers who have conducted their search through informal channels, despite their popularity. Our further analysis suggests two potential reasons for the wage penalty: (1) the informal job search sends a negative signal (of workers’ inability to successfully find a job in a competitive market) to potential employers, resulting in lower wages, and (2) there exists a trade-off between wages and search efficiency for quicker entry into local labor market. We also find some evidence that the informal job search may lead to low-skilled jobs with lower wages. We do not find strong evidence supporting alternative explanations.     

Historic and Contemporary Influences on HIV Advocacy in Vietnam

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - HIV civil society advocacy in Vietnam is shaped by a unique fusion of historic and contemporary influences,...     

基于生态文明建设的城市可持续发展评价——以广西北海市为例

基于2016年的实际数据和2020年的目标数据,构建了以城市可持续发展评价为目标层,以生态经济、生态空间、生态环境、生态人居、生态文化、生态制度为准则层的评价指标体系,利用综合加权指数法构建了基于生态文明建设的城市可持续发展评价定量模型,实证分析北海市基于生态文明建设的城市可持续发展现状。研究发现:北海市城市可持续发展整体情况较好,但生态文明建设子体系差异较大,生态经济、生态文化和生态制度的建设有待进一步加强。据此,提出转变经济发展观念以优化产业发展结构,重视生态文化建设以提高城市综合实力,健全生态文明制度以加强环保执行力度等对策,以推进城市生态文明建设和可持续发展。     

Non-penalty shrinkage estimation of random effect models for longitudinal data with AR(1) errors

In this paper, we consider the non-penalty shrinkage estimation method of random effect models with autoregressive errors for longitudinal data when there are many covariates and some of them may not be active for the response variable. In observational studies, subjects are followed over equally or unequally spaced visits to determine the continuous response and whether the response is associated with the risk factors/covariates. Measurements from the same subject are usually more similar to each other and thus are correlated with each other but not with observations of other subjects. To analyse this data, we consider a linear model that contains both random effects across subjects and within-subject errors that follows autoregressive structure of order 1 (AR(1)). Considering the subject-specific random effect as a nuisance parameter, we use two competing models, one includes all the covariates and the other restricts the coefficients based on the auxiliary information. We consider the non-penalty shrinkage estimation strategy that shrinks the unrestricted estimator in the direction of the restricted estimator. We discuss the asymptotic properties of the shrinkage estimators using the notion of asymptotic biases and risks. A Monte Carlo simulation study is conducted to examine the relative performance of the shrinkage estimators with the unrestricted estimator when the shrinkage dimension exceeds two. We also numerically compare the performance of the shrinkage estimators to that of the LASSO estimator. A longitudinal CD4 cell count data set will be used to illustrate the usefulness of shrinkage and LASSO estimators.