不确定性与企业的对策研究

不确定性是企业不可能避免的一个问题，它一直不断地带给企业机会和危险，它也具有可以确定化的特征。作者探讨并提出了企业在不确定性影响下如何规避可能的损失并获得极大化利益的应对方案。     

A Bivariate Distribution for the Reliability Analysis of Failure Data in Presence of a Forewarning or Primer Event

This article presents a bivariate distribution for analyzing the failure data of mechanical and electrical components in presence of a forewarning or primer event whose occurrence denotes the inception of the failure mechanism that will cause the component failure after an additional random time. The characteristics of the proposed distribution are discussed and several point estimators of parameters are illustrated and compared, in case of complete sampling, via a large Monte Carlo simulation study. Confidence intervals based on asymptotic results are derived, as well as procedures are given for testing the independence between the occurrence time of the forewarning event and the additional time to failure. Numerical applications based on failure data of cable insulation specimens and of two-component parallel systems are illustrated.     

长三角地区制造业空间集聚、生产要素拥挤与集聚适度识别研究

 我国制造业呈现空间集聚特征已是不争的事实,但是并非所有的集聚都会带来正效应,长三角地区一些产业集聚已出现生产要素拥挤现象,产业效率下降明显。本文采用区位商及其产值所占比例等指标选取长三角地区典型的六大高集聚度的制造产业,通过产业规模指数与利润的相关分析,得出并非所有制造行业生产效率与产业聚集度成正相关关系,依据制造业集聚效率特征把集聚类型定量划分为聚集过度、聚集适度与聚集推进三类,并建立区域制造业空间聚集适度分析与预警模型,为合理指导区域产业聚集、产业转移提供决策依据。     

基于免疫危险理论的危机预警系统设计

为了提高危机预警系统识别风险的能力,本文基于免疫危险理论设计了一个危机预警系统,论证了这种危机预警系统比一般的危机预警系统具有更强的风险识别能力,而且具有更好的健壮性、自应性和动态防护性,是一种比较有效的危机预警系统。