企业诚信与竞争优势的关系研究--基于苏州等六地188家企业的实证调查

本文在综合和提炼了企业诚信与竞争优势的相关理论基础上,将企业诚信分为三个维度,分别是信用水平、品牌、利益相关者信任;将竞争优势分为销售业绩、发展潜力、管理绩效三个维度.本文分析了企业诚信三维度与竞争优势三维度之间的相关和回归关系,研究结论有利于企业诚信建设.     

IT安全系统安全效能评估模型

建立了对IT安全系统的安全效能进行评估的安全效能评估模型,该模型具有简单、客观、节省资源和时间、量化了系统安全性、评估结果直观的特点,与通用评估准则不同,从另一个角度来评价IT安全系统的安全性.     

Web环境下IT招标项目风险评价决策支持系统研究

分析了IT招标项目的基本风险特征,并针对因IT招标项目中风险因素多、不确定性大而导致复杂的复合决策问题,在传统决策支持系统的基础上设计了综合推理方式的.NET架构下Web环境IT项目风险评价决策支持系统,分析了系统的功能、特点和设计方法,详细讨论了系统的结构,并给出系统运作过程和实现方法.     

国有企业系统变革战略思索

本文从分析国有企业急需解决的现实问题入手,提出了新形势下系统变革的战略观点,集中研究和探讨了当前我国国企管理发展新变革的十大战略思维,进而提出了国企相应采取的一系列策略与措施。     

The Role of Emotions in Risk Communication

We present two experiments investigating the role of emotions concerning technological and natural hazards. In the first experiment, technological hazards aroused stronger emotions, and were considered to be riskier than natural hazards. No differences were found between the texts versus audio presentations. However, the presence of pictures aroused stronger emotions and increased the perceived risk. Emotions play a mediating role between hazard types and perceived risk, as well as between pictures and perceived risk. The second experiment adopted real‐world materials from webpages and TV. Emotions again play a mediating role between pictorial information and risk perception. Moreover, specific emotions were found to be associated with different types of action tendencies. For example, loss‐based emotions (e.g., fear, regret) tend to lead to prevention strategies, whereas ethical emotions (e.g., anger) lead to aggressive behavior. We also find that loss‐based emotions in the technical hazard scenario trigger more coping strategies (from prevention to retaliation) than in the natural hazard scenario.     

金融创新对货币需求影响的模型分析

本文将金融创新作为投资项目,假设了一个包含金融创新过程的初始成本。并将其导入Lucas现金预付款模型,然后利用这一拓展型模型分析了技术创新、利率变化、经济增长以及金融创新等因素对货币需求变化的影响。     

穗重型杂交中稻冈优501产量构成分析

通过对冈优501五年16个试点的主要产量性状及产量的分析表明：有效穗与产量、着粒数、实粒数、千粒重呈负相关关系。尤其与着粒数、实粒数高度负相关,穗数与粒数矛盾突出。粒数、粒重与产量呈正相关关系。适当控制群体,促进个体发育,有利于发挥穗重型品种多花多实的产量潜能。     

中国服务业的新经济地理特征

 利用2008年地级及以上城市层面服务业的汇总数据和2007年的城市数据,本文对影响服务业产业集聚的因素作了初步的考察,特别关注代表地区市场容量及与市场接近程度的城市市场潜能带来的影响。我们的分析表明,市场潜能较高的城市其服务业集聚程度也更高,平均来看,城市市场潜能提高1%,其服务业集聚程度提高0.2%左右。并且市场潜能对服务业集聚的影响在中部地区最为明显,东部地区次之,西部地区则不显著。市场潜能对服务业影响在地区间的差异可能与东部、中部、西部地区在城市体系以及地理位置的不同有关。本文还分析了其他城市特征及行业差异对服务业分布的影响。     

A segmented regime-switching model with its application to stock market indices

This paper evaluates the ability of a Markov regime-switching log-normal (RSLN) model to capture the time-varying features of stock return and volatility. The model displays a better ability to depict a fat tail distribution as compared with using a log-normal model, which means that the RSLN model can describe observed market behavior better. Our major objective is to explore the capability of the model to capture stock market behavior over time. By analyzing the behavior of calibrated regime-switching parameters over different lengths of time intervals, the change-point concept is introduced and an algorithm is proposed for identifying the change-points in the series corresponding to the times when there are changes in parameter estimates. This algorithm for identifying change-points is tested on the Standard and Poor's 500 monthly index data from 1971 to 2008, and the Nikkei 225 monthly index data from 1984 to 2008. It is evident that the change-points we identify match the big events observed in the US stock market and the Japan stock market (e.g., the October 1987 stock market crash), and that the segmentations of stock index series, which are defined as the periods between change-points, match the observed bear–bull market phases.     

中国钢铁产业关联效应及国际比较分析

 本文应用投入产出表计算了中国钢铁产业关联效应及其国际比较,并分析了各项最终需求对钢铁产业生产的诱发作用。研究结果显示,我国钢铁产业对黑色金属矿采选业后向直接关联效应明显高于其它七国;包括中国、巴西等在内的发展中国家和韩国等新兴工业化国家的钢铁产业对建筑业的前向关联效应远远高于发达国家;我国钢铁产业对国民经济的拉动效应低于其它七个产钢大国,且其对我国国民经济的推动作用呈降低趋势;投资需求仍然是诱发我国钢铁产业生产的最重要因素,明显高于日本、美国等钢铁强国,也高于印度和巴西等钢产量很大的发展中国家;出口需求对钢铁产业生产的拉动效应明显低于钢产量远小于中国的日本等OECD国家。