Quality Competition and Social Welfare in Markets with Partial Coverage: New Results*

We use a vertical product differentiation model under partial market coverage to study the social welfare optimum and duopoly equilibrium when convex costs of quality provision are either fixed or variable in terms of production. We show the following new results. First, under fixed costs, the social planner charges a uniform price for the single variant that just covers costs of quality provision. Like the duopoly equilibrium, this socially optimal pricing entails a partially uncovered market, but a smaller share of the market is served compared with the duopoly equilibrium. Second, for the variable cost case, it is socially optimal to provide both high‐ and low‐quality variants, but market shares need not be equal. This differs from the result in fully covered markets. Third, in the duopoly equilibrium, the quality spread is too wide under variable costs relative to the social optimum. Under fixed costs, the duopoly produces two variants, but quality is too low relative to the social optimum, which has only one variant.     

构建农村和谐社会的思考

构建农村和谐社会,应当树立正确的农民增收观,促进农民持续快速增收,缩小城乡差别;加快农地产权制度改革,解决农地矛盾和纠纷;加快农村基层组织制度和县乡行政改革,解决农村干群矛盾;加快农村教育发展,改进农村教育质量,提高农民素质;加大再造秀美山川工程监管力度,消除工作中存在的不实、不公等因素;加快农村社会保障制度建设,消除农民的后顾之忧.     

A new continuous distribution and two new families of distributions based on the exponential

Recent work on social status led to derivation of a new continuous distribution based on the exponential. The new variate, termed the ring(2)-exponential, in turn leads to derivation of two closely related new families of continuous distributions, the mirror-exponential and the ring-exponential. Both the standard exponential and the ring(2)-exponential are special cases of both the new families. In this paper, we first focus on the ring(2)-exponential, describing its derivation and examining its properties, and next introduce the two new families, describing their derivation and initiating exploration of their properties. The mirror-exponential arises naturally in the study of status; the ring-exponential arises from the mathematical structure of the ring(2)-exponential. Both have the potential for broad application in diverse contexts across science and engineering. Within sociobehavioral contexts, the new mirror-exponential may have application to the problem of approximating the form and inequality of the wage distribution.     

SA8000与人本经济

本文深入探讨了SA8000的产生背景、思想本质及其科学性和局限性，通过与我国科学发展观的比较分析，澄清了目前我国对SA8000的误解和偏见。同时进一步指出，科学的发展观要求我国企业不仅应自觉满足SA8000的要求，而且应承担更广泛的社会责任。     

基于集对分析法的地区大中型工业企业自主创新能力评价

为了对地区大中型工业企业自主创新能力进行全面、科学的评价,基于集对分析法,提出了地区大中型工业企业自主创新能力评价指标体系及综合评价模型。通过对我国30个省市区大中型工业企业的实证分析,表明该方法科学简便,具有很好的实用价值。     

人格测验在人事测评中的应用

文章强调了人格测验在人事测评中的必要性,在此基础上介绍了四种经典人格测验和三种管理情境中的人格测验,分析了人格测验在预测个体未来工作表现、工作风格以及实现人岗匹配方面所发挥的作用。     

新形势下开拓和发展农村市场的思考

当前,内需不足尤其是农村市场启而未动已成为我国经济持续快速增长的主要制约因素.文章在分析了我国市场机制形成过程中农村市场的现状、问题的基础上,提出了开拓和发展农村市场、促进农村经济社会发展的对策建议.     

发展旅游业--新疆社会经济发展的必然选择

旅游是一种具有重大经济与文化意义的活动,它的产生和发展紧随社会前进的步伐。近年来,随着人们收入的增长和消费水平的提高,节假日外出旅游成为时尚。目前,旅游业是我国的重要产业。在我国的很多地区,旅游业已成为增加经济收入、改善产业结构、提高人们的现代意识、推动区域经济和社会进步的重要产业。新疆地区少数民族众多、地域辽阔,加上历史文化悠久,孕育了丰富的自然旅游资源及人文旅游资源,在全国具有旅游资源的比较优势,因此发展旅游业必将带动新疆地区社会经济的全面发展。     

论企业的社会责任

企业社会责任的本质是在经济全球化背景下企业对其自身经济行为的道德约束,它既是企业的宗旨和经营理念,又是企业用来约束企业内部包括供应商生产经营行为的一套管理和评估体系。企业在追求利润最优化、充分考虑利益相关者的利益的同时,必须从整体上考虑“价值更大化”的问题,“价值更大化”应是企业发展的总目标,更应是企业共同的信念和追求。     

中国城镇化进程中社会保障制度的城乡统筹

长期以来,我国实行城乡二元保障格局和严格的户籍管理制度, 使城乡居民享受不平等的社会保障待遇,导致城乡隔离和分割,限制了农村剩余劳动力的转移和向城市的流动,延缓了我国城市化进程.适应城镇化建设需要,构建一元化的社会保障制度是中国社会保障制度设计的终极目标.根据当前实际,应从户籍制度改革、城乡社会保障项目整合、制度完善等方面采取对策措施.