央行货币政策报告文本信息、宏观经济与股票市场

本文利用金融情感词典和文本分析技术,分析中国人民银行货币政策执行报告的文本情绪、文本相似度和文本可读性等多维文本信息,刻画央行货币政策执行报告的文本特征,探究货币政策报告的文本信息与宏观经济和股票市场的关系。实证研究发现,货币政策报告的文本情绪的改善会引起显著为正的股票市场价格反应,报告文本相似度的增加会引起股票市场波动性的显著降低,报告可读性对公布后股票市场的波动性影响不显著。货币政策报告文本情绪还与诸多宏观经济指标显著相关。进一步研究发现,引起股票市场显著反应的是报告文本情绪中反映货币政策指引的部分,而反映宏观经济历史状态的部分对股票市场的影响不显著。本文从文本大数据分析角度证明了我国央行沟通的有效性,对国内央行沟通相关研究形成了有益补充。     

SWOT分析法与华为竞争要素初探

华为具有独特的竞争优势、创新优势和机遇,但也存在一系列劣势和威胁.本文运用SWOT分析模型,探讨华为全球竞争力内部要素,揭示其国际化发展的优势、机遇、劣势和威胁.依托中国崛起,发挥独特的管理优势和创新优势,抓住机遇,化解威胁和劣势,不断培育其全球竞争力.     

国有企业海外并购中的经济安全问题研究

随着经济全球化以及贸易自由化趋势的不断加强,中国企业对外直接投资高速增长,尤其在全球经济危机之后,对外投资已经成为我国企业实现全球布局的重要环节。国有企业作为对外投资企业的主力军,较多地采用了并购的形式,然而,由于国际金融市场的不确定性以及我国社会主义市场经济体制还有所缺陷,使得国有企业在海外并购活动中的经济安全问题一直是一个不能忽视的问题,所以对于这一系列活动风险的防范也就显得尤为重要。因此,加深对这一问题的研究,对于国有企业的海外并购具有重要的意义。     

Managing security risks for inter-organisational information systems: a multiagent collaborative model

Information sharing across organisations is critical to effectively managing the security risks of inter-organisational information systems. Nevertheless, few previous studies on information systems security have focused on inter-organisational information sharing, and none have studied the sharing of inferred beliefs versus factual observations. In this article, a multiagent collaborative model (MACM) is proposed as a practical solution to assess the risk level of each allied organisation’s information system and support proactive security treatment by sharing beliefs on event probabilities as well as factual observations. In MACM, for each allied organisation’s information system, we design four types of agents: inspection agent, analysis agent, control agent, and communication agent. By sharing soft findings (beliefs) in addition to hard findings (factual observations) among the organisations, each organisation’s analysis agent is capable of dynamically predicting its security risk level using a Bayesian network. A real-world implementation illustrates how our model can be used to manage security risks in distributed information systems and that sharing soft findings leads to lower expected loss from security risks.     

社会主义核心价值观视域下的商业言用研究

诚信是社会主义核心价值观的重要内容,建设商业信用管理服务体系是践行社会主义核心价值观的生动体现.当前学界对信用的研究存有一定误区,一方面认为信用针对个人不涉及商事主体,另一方面误以为信用尚处在道德范畴而不受法律规制.在商业信用研究中,必须践行和培育社会主义核心价值观,运用比较研究等方法分析商业信用存在的不足,构建和实践多元的商业信用管理服务体系,服务于全面建成小康社会目标的实现.     

经济类本科毕业论文质量提升的对策指向——基于问卷调查的研究

作为整个培养方案中重要组成部分的毕业论文正经历着质量滑坡的严峻形势,特别是经济类专业则面临着更大挑战。论文依据一项问卷调查的统计结果做出了相应分析,提出了旨在提升经济类本科毕业论文总体质量的方向和方法。     

国际资金循环测度的统计方法及应用

研究目标：本文研究如何测量国际资金循环（Global Flow of Funds，GFF），试图整合国际金融相关数据源，创建GFF统计矩阵。研究方法：讨论了GFF的基本概念，确定了国际资金循环的统计范围。按照2008SNA所提倡的From Whom to Whom 的统计基准，建立了GFF的统计框架，据此框架整合了国际金融组织之间的数据系统关系和现有的国际金融统计数据源。研究发现：利用相关统计创建了GFF矩阵模型表，试编了一个包含中国在内的由11个国家所构成的“国家×国家”的GFF统计矩阵表。研究创新：创建了GFF矩阵表，展开了以中国为主要观测对象的国际跨境资本比较分析。研究价值：建立了观测GFF统计，开辟了新的分析视野，客观揭示了中国在GFF中的状况及现存的主要问题。     

Hospital costs associated with thyroidectomy performed with a Harmonic device compared to conventional techniques: a systematic review and meta-analysis

Objectives: Harmonic devices have become a world-wide standard for dissection and hemostasis in thyroidectomy. Numerous systematic reviews have reported superior operating times, blood loss, post-operative pain, length of stay, and overall safety outcomes. What has not been extensively evaluated in a robust manner is their economic impact. The purpose of this study is to evaluate the hospital costs associated with open thyroidectomy using Harmonic devices compared with conventional techniques for hemostasis. Methods: A systematic review of Medline, Scopus, and CENTRAL was performed from January 1, 2000 to May 23, 2014 without language restrictions for randomized clinical trials comparing Harmonic surgical devices to conventional methods in thyroidectomy. The main outcome measure was total reported costs. Costs were pooled using the ratio of means and a random effects model. Sensitivity analyses assessed whether differences in patient and trial characteristics, healthcare setting, or choice of statistical model affected outcomes. Results: Seven studies met the inclusion criteria. A total of 476 participants had procedures performed with Harmonic devices and 478 with conventional monopolar electrosurgery and clamp, cut and tie techniques. Compared with conventional techniques, Harmonic devices reduced total reported costs by 10% (p?=?0.007), resulting in a $229?US dollars (USD) absolute reduction from mean baseline costs. Results remained relatively robust to additional sensitivity analyses. Conclusions: This systematic review and meta-analysis demonstrates that the Harmonic family of surgical devices is associated with a reduction in total reported costs in thyroidectomy compared with conventional techniques. A large portion of the overall savings derives from a reduction in operative costs.     

华蓥山自然保护区大型真菌资源多样性调查与研究

为了解和合理开发华蓥山自然保护区的大型真菌资源,对保护区内的大型真菌进行了连续一个月的调查与研究。结果表明:该保护区内有大型真菌57种,隶属5纲7目24科43属。其中担子菌亚门层菌纲种类最多,有50种,分属18科37属,占鉴定样本总数的91.2%。保护区内植被类型众多,主要有阔叶林、针叶林、混交林以及灌木草甸,其中灌木草甸中大型真菌最多,有32种,占鉴定样本总数的56.1%。保护区内具有经济价值的大型真菌种类众多,在食用和药用等方面具有较大的开发潜力。     

保险公司诉讼与诉讼预期相关性研究

近年来我国保险诉讼案件增势不减,有的历经一审、二审,有的还要再审。从媒体披露的结果看,保险公司无论作为原告还是被告,似乎都是胜少败多。本文通过对北京某人寿保险股份有限公司2005年～2008年诉讼、诉讼预期数据的实证调研,探讨保险公司诉讼预期是否实现及实现程度,在此基础上提出更理性、更具可操作性的建议。