国内外嵌入性研究述评

对现有国内外嵌入性研究进行了评述。指出:目前嵌入性的概念内涵已较为成熟;一些学者综合社会资本和社会网络研究,对嵌入型的概念构成提出了不同的维度划分方式,多数学者从不同侧面探讨了嵌入性与企业活动的关系;现有研究的不足主要体现为,不同层面的研究没有有效交融、嵌入性与企业活动间联系研究的系统性有待开发、一些社会网络研究方法等无法被充分应用于此方面的研究中。     

公共财政框架下的农村养老保险制度建设研究

农村养老保险规定和完善着公共财政的职能范围;公共财政是农村养老保险的制度依托和物质基础,财政主体的权力结构、制度的包容性、法制化决定着养老保险制度的可持续性发展。我国要实现公共财政与农村养老保险之间的制度性耦合,需要根据农村养老保险的产品属性清晰界定公共财政的职责权限,规范公共财政各主体之间的权力资源配置,吸纳多元主体,共同参与农村养老保险事业的建设。     

浅谈建筑装饰材料在室内设计中的应用

装饰材料的种类繁多,性质丰富,质感多样,形成了效果各异的色彩视觉与情感效应,不同性质的材料在室内设计中的应用有着不同的效果,在设计中应注意对比与和谐的统一,和谐体现永恒的美,对比产生生命的灵气。文章对各种不同材料属性在室内设计中的应用做了一个较为全面的论述。     

The Relation Among Targets' R&D Activities, Acquirers' Returns, and In-Process R&D in the US

Abstract:  Using a sample of 129 mergers and acquisitions (M&As) in the US between publicly traded acquirers and targets in research and development (R&D) intensive industries over the period of 1994-2004 and a size- and industry-matched sample, we examine the relation among targets' R&D activities, the probability of acquirers' writing-off in-process R&D (IPRD), and acquirers' returns around the time of M&A announcements. We find that firms acquiring targets with higher R&D investments tend to write off some of the acquired R&D assets upon the completion of the M&As. We also find that the median cumulative abnormal return during the three days around M&A announcements for acquirers with subsequent IPRD write-offs is −2.73% while the return for acquirers without IPRD write-offs is −0.60%. This suggests that acquirers' stock returns around M&A announcements are much lower when investors expect acquirers to expense IPRD. The results are consistent with our conjecture that acquirers tend to write-off IPRD when they acquire overvalued targets. We also find that IPRD write-offs do not increase earnings or stock returns of acquirers after M&As, which is inconsistent with an earnings management hypothesis.     

我国国际货代企业未来发展的定位与战略思考

面临新的经济活动方式和变化的经营环境,国际货运代理正走向一个分化和转型的时期。本文介绍目前国际货代市场的概况,分析我国加入WTO后国际货代市场面临的挑战,阐述国际货代服务功能的重新定位,并提出货代的发展方向。     

美元汇率变动因素分析

<正>美元汇率变动情况1971年布雷顿森林体系解体后,美元实际上成为国际货币体系的"锚货币",美元汇率变动对全球经济具有重要影响。从名义汇率和实际汇率来看,两种汇率指数变动基本一致,呈现出一定的周期性。一是强势美元周期,即美元汇率持续上升,高位运行。二是弱势美元周期,即美元汇率持续下降,低位运行。第一阶段(1971～1978年):弱势美元周期。1971年美国总统尼克松宣布放弃金本位,停止美元与黄金的固定兑换比率,同年"史密森协议"宣布     

碳中和目标导向的省域消费端碳排放减排模式研究——基于多区域投入产出模型

文章以多区域投入产出模型为基础,研究了中国省级和行业层面基于消费端的碳排放及碳转移,并解析了碳中和导向下的碳减排模式。结果表明:23个省份本地消费碳排放大于外地输入碳排放;资本形成是碳排放最大贡献者;能源生产和供应业以及非金属和金属业是碳转移的主要行业,能源生产和供应业输出碳排放量最大的内蒙古主要输出给北方地区,非金属和金属业输出碳排放量最大的河北主要输出给江苏等省份;中国30个省份可以根据消费端碳排放的来源特征和净碳转移方向分为四类。在碳中和目标导向下,本研究有助于倒逼各省份绿色发展和绿色低碳产品的输出,绿色低碳也将是未来贸易市场趋向。     

The rationality and efficacy of decisions under uncertainty and the value of an experiment

Summary A decision maker faces a known prior distribution over payoff relevant states. We compare the expected utility of this individual under two scenarios. In the first, the decision maker makes a choice without further information. In the second, the decision maker has access to an experiment before choosing an action. However, the decision maker does not know the true joint distribution over states and messages. The value of the experiment as measured by the difference in the two utility levels can be negative as well as positive. We give a condition which is necessary and sufficient for the experiment to be valuable in our sense, for any decision problem.An earlier version of this paper was circulated under the title Noisy Bayes Updating and the Value of Information. We have gained from the comments of Stephen Coate, John Geanakoplos, Larry Samuelson, Timothy Van Zandt and seminar participants at Harvard Business School, Princeton, Boston University, the international conference on game theory at Stony Brook 1992 and the Winter meeting of the Econometric Society at Anaheim 1993. The first author received support for this project from NSF grant #SES-9308515 and a University of Pennsylvania Research Foundation Grant.     

技术中介在技术交易服务中是否存在下沉倾向——基于买方选择视角的验证

技术要素转移与交易对技术中介有较强的依赖性,而技术中介的存在能够有效降低交易过程中的信息失衡,为买方交易提供必要支持,技术中介服务直接影响技术交易效率。当代技术中介服务已经形成较大规模,提供服务的种类也较为全面,整体上适应了技术市场发展需要。但是,由技术中介参与的大量交易都存在低端化倾向,据此提出中介服务下沉化假设,并构建选择影响因素模型。通过对买方企业数据的采集与回归,发现无论是全样本还是分类样本均有效验证了主要假设变量。因此,为保障技术中介合理发展,从政策层面应重点关注如何提升服务质量,使其服务于中高端技术交易需求。     

高校家庭经济困难学生资助体系问题分析及对策研究

高校目前建立的多元化家庭经济困难学生资助体系,对家庭经济困难学生进行资助,但还存在一些不足。本文围绕以学生为本的核心思想,结合新形势新背景,通过分析高校家庭经济困难学生资助情况现状,指出家庭经济困难学生资助工作体系存在的问题,并提出一些建议,以期完善该体系。