Improved likelihood inferences for Weibull regression model

A general procedure is developed for bias-correcting the maximum likelihood estimators (MLEs) of the parameters of Weibull regression model with either complete or right-censored data. Following the bias correction, variance corrections and hence improved t-ratios for model parameters are presented. Potentially improved t-ratios for other reliability-related quantities are also discussed. Simulation results show that the proposed method is effective in correcting the bias of the MLEs, and the resulted t-ratios generally improve over the regular t-ratios.     

薪酬参照体的效应研究:基于多表征的路径模型与相对重要性

参照体选择在分配公平、薪酬满意研究中扮演重要角色,而以往研究多是关注焦点对象与参照体在薪酬上的数量差异。本文认为,参照体"数量差异"并不能完整表征参照体的效应,为此提出了"信息知晓度"、"判断关联性"、"比较频率"、"数量差异"等四类表征,在理论基础上构造路径模型与研究假设。实证研究表明,信息知晓度、判断关联性正向影响特定参照体的比较频率;数量差异正向影响分配公平、薪酬水平满意,比较频率负向影响分配公平、薪酬水平满意。通过三种研究路径的比较研究证实,自我生活成本等七类参照体相对重要。未来亟需就参照体选择的相关机制在纵贯上、在不同的组织情境下及考虑个体差异等方面予以深入考察。     

浅谈当代藏族新诗的创作与批评

本文从诗歌批评的角度来研究当代藏族诗歌的创作和发展.鉴于藏族当代诗歌创作与批评相脱节的态势,有必要将创作与批评相结合,创作主体与批评主体相互对话,双向互动进行论述,通过优秀的创作来吸引批评聚焦,通过多元化批评来激励和鞭笞创作,并在文本阐释的基础上突出批评的主体性.     

融资融券制度与市场定价效率——基于卖空摩擦的视角

我国融资融券制度不同于国外成熟市场的一个重要特征是存在较大的卖空摩擦,但这一卖空摩擦对市场定价效率的影响及其作用机制尚未被研究揭示.本文运用双重差分固定效应模型、处理效应模型和倾向性匹配双重差分模型,研究了融资融券制度中的卖空摩擦对市场定价效率的影响及其内在机制.实证结果表明,融资融券制度中的卖空摩擦抑制了市场参与者对公司特质信息的充分挖掘,促使其过度利用市场或行业信息进行交易,从而延缓了公司特质信息融入股价,加速了市场或行业信息融入股价,最终加剧了股价同涨同跌现象,不利于市场定价效率的提高.本文研究结论为监管部门合理扩大融资融券标的范围、降低交易成本和交易门槛,营造高效的市场环境提供了依据和思路.     

上海机器人产业发展战略与对策

发展机器人产业对上海意义重大,上海机器人产业和技术发展的战略定位须着眼于上海的转型发展和自身的基础。为此,应加强战略引导和资源整合,制定上海机器人产业与技术整体规划和路线图;加强需求的政策引导,发挥本土市场的拉动作用,促进机器人在各领域的应用;吸引大型企业参加应用开发,培育龙头企业;支持中小型企业加速发展,在细分市场形成竞争优势;完善机器人产业园区,提高政策优惠力度;协调整合产、学、研、用和跨学科资源,建立以企业为中枢的研发体系,以促进产业集聚和创新行业。     

食品全产业链三维风险评价

为了有效控制食品全产业链风险,降低食品安全事件发生概率和影响程度,文章运用三维风险分析模型构建食品全产业链风险评价模型.从全产业链流程视角分析食品全产业链的各环节风险,从而构建食品全产业链风险评价指标体系.然后,采用熵值法确定食品全产业链风险评价指标重要度,结合现有食品全产业链风险发生可能性统计资料和风险后果划分标准,确定食品全产业链的各环节风险影响因素风险程度.根据风险发生概率、风险指标重要度和风险因素发生后果三维风险评价模型确定的关键因素,寻求相应的食品安全风险控制措施.     

Life satisfaction in China and consumption and income inequalities

This research uses nationally representative data to study how economic resources and inequalities are associated with life satisfaction of Chinese residents. We construct economic resource and inequality measures from expenditure rather than from income, after confirming that expenditure inequality is a better measure in the Chinese context. We find that economic inequalities in general are negatively associated with life satisfaction, and that this association is larger for inequalities in the lower half of the distribution than those in the upper half of the distribution. We further explore the mechanisms under which inequality can be associated with life satisfaction, and find that aspiration is potentially one important channel.     

Web 2.0 and Political Engagement in China

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This article examines civic and political engagement in contemporary China by three recent cases where activists and...     

Evidence-based practice in Chinese social work: overcoming language and developmental barriers

This scoping review followed Cochrane guidelines to comprehensively assess the use and understanding of Evidence-Based Practice (EBP) in Chinese social science literature. We conducted a research across three electronic databases and three major social science journals for the studies published between 2004 and 2016. Chinese social work literature demonstrates a precise understanding of EBP defined as a process, but it lacks comprehensive discussions about EBP that extend beyond basic principles and process definitions. We identified language barriers and developmental issues for social work in China that contribute to these incomplete discussions. We examined the importance of broadening and enriching the discussions around EBP, especially for Chinese educators, researchers, and clinicians involved with empirically supported treatments. We also consider the implications of our findings for the development of social work in China.