Dynamic Pricing to Minimize Maximum Regret

We consider a dynamic pricing problem that involves selling a given inventory of a single product over a short, two‐period selling season. There is insufficient time to replenish inventory during this season, hence sales are made entirely from inventory. The demand for the product is a stochastic, nonincreasing function of price. We assume interval uncertainty for demand, that is, knowledge of upper and lower bounds but not a probability distribution, with no correlation between the two periods. We minimize the maximum total regret over the two periods that results from the pricing decisions. We consider a dynamic model where the decision maker chooses the price for each period contingent on the remaining inventory at the beginning of the period, and a static model where the decision maker chooses the prices for both periods at the beginning of the first period. Both models can be solved by a polynomial time algorithm that solves systems of linear inequalities. Our computational study demonstrates that the prices generated by both our models are insensitive to errors in estimating the demand intervals. Our dynamic model outperforms our static model and two classical approaches that do not use demand probability distributions, when evaluated by maximum regret, average relative regret, variability, and risk measures. Further, our dynamic model generates a total expected revenue which closely approximates that of a maximum expected revenue approach which requires demand probability distributions.     

内外在薪酬组合激励模型研究

在组织经营管理实践中,如何通过行之有效的激励措施提升员工的绩效是人力资源管理中的持久性难题。本文在回顾和分析内外在薪酬激励相关研究基础上,借鉴内外结合,刚柔相济的思想,构建了旨在提升组织人力资源长久动力的内外在薪酬组合激励模型,特别是提出的推动式、牵引式和权变式三种具体激励策略,为组织人力资源管理中的员工激励实践提供了有益的启示和帮助,并为今后有关激励与薪酬的理论研究提供了新的思路与方向。     

上市公司经营者继任的绩效意义

经营者的继任及其继任形式对公司的市场绩效具有影响,体现在股价即时变动的信号效应和公司系统风险水平发生变更的管理效应上。本文对沪深300指数成份股公司2001-2003年的301例董事长和总经理继任事件,用事件研究方法分析了经营者继任的信号效应,用邹检验识别了经营者继任的管理效应。研究表明,经营者继任形式是影响信号效应的重要因素,而经营者继任事件导致的管理效应是普遍存在的。另外,与国外同类研究的比较表明,中外上市公司经营者继任的绩效意义既有相似之处,也有不同之处。     

Female athletic participation and income: evidence from a latent class model

This paper introduces and applies an EM algorithm for the maximum-likelihood estimation of a latent class version of the grouped-data regression model. This new model is applied to examine the effects of college athletic participation of females on incomes. No evidence for an “athlete” effect in the case of females has been found in the previous work by Long and Caudill [12], Henderson et al. [10], and Caudill and Long [5]. Our study is the first to find evidence of a lower wage for female athletes. This effect is present in a regime characterizing 42% of the sample. Further analysis indicates that female athletes in many otherwise low-paying jobs actually get paid less than non-athletes.     

论《镜花缘》纵横交错的结构特征

《镜花缘》的结构是纵横交错、错综复杂的,作者不但从整体上构筑了一个天人合一的因缘结构框架,而且作品的内在叙事结构又与《西游记》、《水浒传》以及《红楼梦》的结构颇为相似,对这些作品存在着不同程度的借鉴,但同时又具有一定的创新性。     

工业废水常规处理方法概述

针对陕北地区能源资源富集与水资源短缺的现状,分析了工业废水处理的必要性,并按照废水处理程度和作用原理对工业废水处理技术进行分类,进而介绍了常规工业废水处理方法,提出物理法、化学法、物化法、生物法等相结合的废水处理工艺系统。     

细论《文心雕龙·风骨》篇

刘勰在《文心雕龙·风骨》篇中以三个部分展开对“风骨”的论述：第一,“风骨”概念的提出;第二：气、采与风骨三者的关系;第三：风骨与新巧的讨论。以上述的三个层次来阐释文本,《风骨》篇的整体面貌得以还原,风骨,气,采,新奇等概念也在对文本的分析中得到解释。     

林业类高校学报稿源变化趋势及其与期刊质量的关系

通过对8种林业类高校学报2003-2010年载文量与内稿率变化的统计,分析此类学报目前稿源的组成变化情况;对载丈量与3年影响因子和总被引频次、内稿率与3年影响因子之间作相关分析,探讨稿源变化趋势与期刊质量的关系。     

现代人文精神与社会主义法治国家——兼论五四开拓社会主义法治国家的概念

现代人文精神为马克思主义所批判继承与弘扬 ,成为社会主义法治国家的理念基础。其思想源头可追溯到五四时期中国马克思主义先驱者李大钊、陈独秀等结合旧中国实际所阐述的现代法治社会国民或公民应有的自觉意识。对此资源 ,2 1世纪的中国应予积极开发利用 ,以利于锻造社会主义法治国家所需要的理念基础和现代人文精神     

论中国特色社会主义司法制度的基本特征

中国特色社会主义司法制度的优越性和基本特征表现为：广泛的人民性与鲜明的政治性相统一、司法公正性与社会和谐性相统一、权力的制约性与功能的配合性相统一。