Security Investment in Contagious Networks

Security of the systems is normally interdependent in such a way that security risks of one part affect other parts and threats spread through the vulnerable links in the network. So, the risks of the systems can be mitigated through investments in the security of interconnecting links. This article takes an innovative look at the problem of security investment of nodes on their vulnerable links in a given contagious network as a game‐theoretic model that can be applied to a variety of applications including information systems. In the proposed game model, each node computes its corresponding risk based on the value of its assets, vulnerabilities, and threats to determine the optimum level of security investments on its external links respecting its limited budget. Furthermore, direct and indirect nonlinear influences of a node's security investment on the risks of other nodes are considered. The existence and uniqueness of the game's Nash equilibrium in the proposed game are also proved. Further analysis of the model in a practical case revealed that taking advantage of the investment effects of other players, perfectly rational players (i.e., those who use the utility function of the proposed game model) make more cost‐effective decisions than selfish nonrational or semirational players.     

试论投资基金的治理结构

投资基金的治理结构包含三个层次,即基金的各方当事人权利义务的制度安排、基金内部约束机制、外部市场压力及监管制度。针对我国基金治理结构目前存在的问题,可通过引入独立董事制度、将基金经理的报酬机制与公司的经营业绩挂钩、增强外部市场的竞争压力等途径,使之逐步完善。     

Media Publicity and the Voluntary Sector: The Case of Nonprofit Organizations in New York City

Media publicity is an important resource for contemporary voluntary associations, but very little is actually known about the resources and organizational characteristics that are most important for getting media attention. To address this question, we collected and analyzed data on the organizational attributes and news publicity of 739 nonprofit organizations in New York City. We find that an organization's income, paid staff, membership size, and library resources are significantly related to getting media publicity, whereas the number of chapter affiliations is inversely related to publicity. Association type is also a significant factor that influences an organization's ability to get publicity. We discuss the implications that these findings have for current debates about advocacy and civic engagement in the nonprofit sector.     

试论佛山企业境外投资

企业境外投资应该成为佛山市发展外向型经济的战略任务之一。佛山市企业境外投资,具备着所有权、内部化和区位等方面的相对优势。境外投资是佛山市企业占领国外市场、扩大出口的有力手段;可享受国内外双重的优惠政策和待遇;是增加外汇收入、利用外资的新型方式。九十年代,佛山市企业应注重对东南亚国家的直接投资,对国外高科技,新产品、新服务部门和行业的直接投资。     

关于规范地方财政投融资体系的若干思考

地方财政投融资是以地方政府信用为基础 ,为实现政府基本目标 ,采取有偿融资和投资方式所进行的经济活动及所形成的制度体系。改革开放以来 ,投融资业务对地方经济发展起到了积极作用 ,但由于理论研究的严重滞后 ,以及政策措施不配套 ,地方财政投融资尚处于初步发展阶段 ,我们有必要总结其在发展中面临的问题 ,促进地方财政投融资体系的进一步完善     

"新理学"中"理""气"范畴的问题与症结

在“新理学”的形上学系统中 ,冯友兰借助于逻辑方法和柏拉图主义的新实在论思想对程朱的“理”“气”范畴进行改造性的诠释 ,力图给中国哲学重设一个纯形式的本体论基础 ,但这一努力却造成了冯氏“理”本体中人性道德内涵的缺失 ,以及形上与形下两个世界的二元对立。     

南宋理学家对王安石新学的批判

南宋理学家对 王安石新学的批判，主要表现在二方面：一是斥新学为异端邪说，藉以标榜理学为继孔孟绝 学的正统，二是把新学作为变乱祖宗法度而致北宋亡国的理论根源，予以无情打击。陆九渊 对王安石个人的政治操守和治国理想给以赞誉，但对王安石新学亦持批评态度。理学家批 判新学对南宋社会发展造成了不良影响，这就是在“法祖”的旗帜下，使南宋社会上上下下 因循守旧、政治上保守主义日益弥漫，并且直接影响了元明清对王安石新学及新法的评价。     

大学英语教学改革视野中的"情景教学"特色分析

情景教学体现了英语教学改革整体化、情景化的内在灵魂与要求 ,适应了我国大学英语教学改革的需要。《新编大学英语》采用以学生为中心的主题教学模式 ,通过以生活、图画展现情景 ,以音乐渲染情景 ,以角色扮演创设情景的方式为情景教学的实施与运用提供了基础 ,呈现出鲜明的情景教学特色。     

人力资本投资与个人收入能力

讨论了人力资本的经济价值，通过建立教育投资模型，训练投资模型及流动投资模型，指出了正规教育投资，在职培训投资，迁移与流动投资对人力资本收入能力的影响。经分析表明，个人的人力资本现时存量与个人的未来收入能力之间存在正相关。     

试析我国房地产投资运作模式及其发展

随着我国房地产市场由卖方市场逐渐过渡到买方市场,房地产投资运作模式由作坊生产式投资模式逐渐向社会化大生产式投资模式椎进。