试论国防经济转型的主要任务

笔者在文中主要对转变军费增长方式、优化资源配置结构、拓展军队保障方式三个方面对国防经济在转型中的主要任务进行了相关的讨论.     

横看成岭侧成峰 远近高低各不同——高校与中小学教师课堂提问策略比较

高等学校和中小学课堂提问都应坚持重点突出、难易适度和启发性原则,注意把握提问时机、语言表达方式并做好答问点评。大学生和中小学生在学习目的、学习内容和学习方式方法上的区别,使得高校课堂应强调师生对话。中小学课堂提问应着重强调启迪思维,高校课堂应以隐性提问为主;中小学课堂注重显性提问,高等学校的课堂提问应强调知识的拓展性,中小学的课堂提问应强调内容的趣味性。高等学校课堂提问与中小学课堂提问的区别只是相对意义上的主次之分,而非绝对意义上的完全不同。     

破解城乡二元体制的公共物品视角研究

近年来,城乡二元体制的存在愈发成为我国社会经济发展的体制性障碍之一。与此同时,公共物品的城乡非均衡化分配伴随着城乡二元体制而发展并成为其经济基础。为此,本文根据公共物品城乡分配的现状,探寻了城乡二元体制与公共物品非均衡化分配之间的内在关系,并以此为基础,从公共物品的视角探索破解城乡二元体制的途径。     

Information optimality and Bayesian modelling

The general approach of treating a statistical problem as one of information processing led to the Bayesian method of moments, reference priors, minimal information likelihoods, and stochastic complexity. These techniques rest on quantities that have physical interpretations from information theory. Current work includes: the role of prediction, the emergence of data dependent priors, the role of information measures in model selection, and the use of conditional mutual information to incorporate partial information.     

中日一次能源消耗的碳排放及影响因素对比分析

中国和日本是一次能源消费大国，煤、石油和天然气消费比例较高，温室气体排放量较大。受国内能源强度、能源消费结构以及能源效率水平等因素的影响，日本国内碳减排成本远高于我国。《京都议定书》规定的国际碳减排机制为日本实现温室气体境外低成本减排提供了平台，也为我国带来了项目融资和引进环境技术的新机遇。但是，中日清洁发展机制环境合作的实践表明，国际碳减排机制对日本等发达国家实现碳减排目标的贡献较大，而对我国碳排放量的控制贡献较小。我国要想从根本上改善能源消费结构、实现碳减排，必须走低碳经济的发展道路。     

加大农村人力资本投资 缩小城乡差距

缩小城乡差距,实现城乡统筹发展是我国新农村以及和谐社会建设的一项重要任务。人力资本差距是城乡差距的最根本原因。文章从人力资本投资的视角描述了城乡差距的客观事实,并在此基础上给出了缩小差距的政策改革建议。     

A note on theE-optimality of block designs

Summary In this paper we consider the problem of determiningE-optimal block designs for experimental situations in whichv treatments are to be tested onn experimental units arranged inb blocks and where the block sizes and number of replications assigned to the treatments are allowed to vary. Some sufficient conditions are obtained for designs to beE-optimal in these situations and methods for constructing designs which satisfy the sufficient conditions given are also derived.     

Exploring customer engagement in the product vs. service context

Though customer engagement (CE) is heralded as a strategic organizational imperative, empirically derived insight into its nomological network remains sparse. Extending existing research, we therefore test service-dominant logic-informed CE vis-à-vis its key antecedents of knowledge sharing and learning, and its consequences of customer cocreation and relationship quality. We also envisage the existence of CE-based differences across physical goods (versus service) contexts, leading us to include the nature of the offering (good vs. service) as a moderating factor in our model, making a novel contribution. To test the model, a survey was conducted in the tangible sports goods (i.e., sports retail) and -service (i.e., sports club) contexts. The findings substantiate a positive effect of customer learning and knowledge sharing on CE, thus empirically validating conceptual literature-based claims. In addition, CE was found to exert a favorable effect on customer cocreation and relationship quality. Moreover, the results confirm our hypothesized moderating effect by revealing the framework’s stronger associations for service- (vs. product-based) CE. We conclude by discussing key implications that arise from our analyses.     

现代中国海关货物贸易统计主流地位的回顾与展望——海关系统外两代统计学人的视角

在当今中国,举凡对货物贸易统计做研究,势必想到海关统计,或者说海关统计就是货物贸易统计的代名词。然而这种对应关系在几十年前并非自然存在,几乎在整个20世纪后半叶,曾有对外贸易业务统计与海关统计平行存在的情形。本文从对外经济贸易大学两代统计学人的视角,回顾了现代中国海关货物贸易统计主流地位演进历程,剖析了中美货物贸易统计差异的原因,澄清了贸易增加值核算的相关表述,并对数字经济背景下海关统计工作的创新进行展望。     

Web集群中基于服务等级容错调度算法研究

适应高实时性Intemet业务中Web服务器集群系统高可用度响应的要求,研究中提出了一种应用于Web集群的基于服务等级的容错调度算法。该算法运用主／副版本技术,将Web请求的实时性、容错和客户身份等指标综合成服务等级参数,确保任务在规定的时间内高效完成,在任务调度中采用了负载均衡调度机制,实验结果验证了算法的有效性。