基于网络的《大学体育》教学设计

以建构主义学习理论为依据,利用网络和多媒体技术,本文对基于网络的《大学体育》教学体系结构、模块功能和学习活动的实施进行了设计。     

Heterogeneity in Economics

This paper argues that heterogeneity of agents’ characteristics plays a fundamental role in the economy and should do so in economic models. Three aspects are considered. Firstly the notion that assuming heterogeneity was a solution to the problem posed by the results of Sonnenschein Mantel and Debreu is considered and it is suggested that the more pragmatic approach adopted by Hildenbrand is likely to be more productive. Next the role of adaptation and evolution which necessarily involve variety or heterogeneity is examined. It is suggested that heterogeneity will persist since agents will only slowly learn to adapt and that in the meantime the environment will change. Lastly the role of heterogeneity in financial markets is examined. It is suggested that heterogeneous and varying expectations may account for many of the stylised facts which do not seem to be consistent with the standard financial markets model.“Variety is the spice of life”     

美国城市公园评价体系的内容、应用 及启示——以ParkScore指数为例

中国快速城镇化的过程伴随着各类城市绿地公园的 规划建设。对城市公园系统综合质量的科学评价关系着城市开 放空间品质的提升、居民生活质量的提高和公共服务设施规划 水平的进步。以ParkScore指数为例,对美国城市公园综合 评价系统的建设过程、评价标准和指标体系进行系统介绍和特 征评述,总结分析其在城市规划实践和研究中的应用,提出我 国应完善城市空间数据库建设、引入以人为本的评价指标和加 强指标体系建立过程的有效性等建议措施,旨在为我国城市公 园综合评价系统建设提供借鉴。     

武汉城市创新系统创新能力评价与提升对策

界定了城市创新系统的概念、结构和特征,提出了城市创新系统子系统创新能力评价的指标体系,并对武汉市城市创新系统的创新能力进行了评价。最后,提出了提升武汉市城市创新系统创新能力的对策。     

Competition and risk in South East Asian commercial banking

This article investigates the effects of competition on bank risk taking behaviour in four South East Asian countries (Indonesia, Malaysia, Philippines and Vietnam). Our main finding is that competition does not increase bank risk-taking behaviour and the results appear robust to different model specifications, estimation approaches and variable construction. We also find that concentration is inversely related to bank risk whereas regulatory restrictions positively influence bank risk-taking.     

金融工具会计准则交易税制设计的思考

为了规范金融工具的确认和计量,反映金融工具对金融机构财务状况和经营成果所带来的真实影响,揭示其潜在风险,提高金融机构的会计信息的质量,新颁布的金融工具会计准则采用公允价值计量,并将损益纳入当期损益。本文分析了此举对我国税制所产生的影响,并对金融工具交易的税制设计提出了设想。     

资源型城企物流耦合系统的系统动力学模型及其应用

从资源型企业拥有的物流资源优势出发，构建了资源型企业物流与资源型城市物流耦合系统，埘资源型城企物流耦合进行系统动力学模型设计，建立了耦合系统的系统动力学模型．通过对济宁市和兖州矿业集团的实际情况进行模拟和运行结果分析。从物流角度为资源型企业下一步的转型和发展提供了参考。     

Karl Pearson and the Origin of Kurtosis

Although the kurtosis index proposed by Karl Pearson in 1905 is introduced in statistical textbooks at all levels, the measure is not easily interpreted and has been a subject of considerable debate. In this study, the theoretical development of kurtosis is surveyed from a historical perspective of Pearson's work on evolution. It surprisingly emerges that there was no emphasis in Pearson's papers on kurtosis as measuring (in part) tail heaviness. However, it is found that Pearson used to frequently adjust the formalisation of kurtosis depending on his changing needs. This complex development partly explains the confusion that would surround kurtosis in subsequent literature. Our conclusion is that most misunderstandings arise from improper use of the kurtosis coefficient outside the Pearson system of frequency curves.     

Market clearing and derivative pricing

Summary. We develop a method of assigning unique prices to derivative securities, including options, in the continuous-time finance model developed in Raimondo (2001). In contrast with the martingale method of valuing options, which cannot distinguish among infinitely many possible option pricing processes for a given underlying securities price process when markets are dynamically incomplete, our option prices are uniquely determined in equilibrium in closed form as a function of the underlying economic data.Received: 14 April 2003, Revised: 7 January 2004, JEL Classification Numbers: G13, D52.This paper is dedicated to Birgit Grodal, whose strength and character we greatly admire. We are very grateful to Darrell Duffie, Steve Evans, Botond Koszegi, Roger Purves, Jacob Sagi, Chris Shannon, Bill Zame and an anonymous refereee for very helpful discussions and comments. The work of both authors was supported by Grant SES-9710424, and Andersons work was supported by Grant SES-0214164, from the National Science Foundation.     

民营企业建立现代企业制度相关问题分析

我国民营公司制企业,特别是非上市有限责任公司,仍然是封闭式家族企业。既使是上市公司,其目的也是通过上市筹集资金,现代公司治理结构的改造进展缓慢。我国民营企业进行现代企业制度改造,其重点不是消除家族企业色彩,改制主要围绕完善内部管理,提高经营管理水平和企业决策的科学性。通过建立健全企业内部规章制度,规范企业行为,使民营企业能够按政府颁布的法律法规开展生产经营活动。