企业经营的战略“制高点”—企业道德水平

由于买方市场日趋成熟，市场竞争日益加剧，企业经营已经不再仅仅满足于短期利润，而是考虑立足于可持续的竞争优势。文章分析了“企业经营”和“企业道德”之间的关系，论述了竞争和正直之间的相容性以及企业道德水平的高低对企业可持续竞争优势规模的影响，总结出企业道德水平是约束企业经营高度的战略“制高点”，而提升企业道德水平，使道德“均衡倾向”合理转化，充分发挥“道德优势”的牵引作用，是获得企业可持续竞争优势的必然选择。     

Stochastic Conditional Intensity Processes

In this article, we introduce the so-called stochastic conditionalintensity (SCI) model by extending Russell’s (1999) autoregressiveconditional intensity (ACI) model by a latent common dynamicfactor that jointly drives the individual intensity components.We show by simulations that the proposed model allows for awide range of (cross-)autocorrelation structures in multivariatepoint processes. The model is estimated by simulated maximumlikelihood (SML) using the efficient importance sampling (EIS)technique. By modeling price intensities based on NYSE trading,we provide significant evidence for a joint latent factor andshow that its inclusion allows for an improved and more parsimoniousspecification of the multivariate intensity process.     

Using volume to prove Sperner’s Lemma

We provide a novel proof of Sperner’s Lemma that is intuitive and elementary if certain simple properties of Lebesgue measure are known. The research of A. McLennan is partly funded by the Australian Research Council grant DP0773324. This paper was partly written while he was a member of the Discipline of Economics, The University of Sydney. McLennan also gratefully acknowledges the hospitality of the Economic Theory Center of the University of Melbourne. The research of R. Tourky is partly funded by the Australian Research Council grant A00103450. This paper was partly written while he was a member of the Department of Economics, Purdue University.     

丁家屋子地区孔店组高凝油增产措施选层技术

文章通过对丁家屋子地区孔店组高凝油测试资料进行分析,将储层分为四类,并对每类储层的试油工艺及效果进行了分析,找到了增产措施选层原则。     

分段函数在分段点处导数的一种求法

由一错例引出了讨论导函数在分段点处的左、右极限与对应函数的左、右导数相等的分段函数在分段点处导数的一种求法。     

湿地系统的流域湿地保护与利用

流域湿地作为湿地系统研究领域的一个重要分支,已引起了越来越多的学者和专家的广泛重视和研究。基于流域和湿地的概念对其进行了阐述,并通过总结诸多国内外在该领域的研究成果,探讨了流域湿地的特征、功能、开发与利用及存在的主要问题、研究热点及前沿问题等,为有关管理部门对流域湿地资源的综合利用与保护提供理论支撑。     

战略管理会计概念结构基本框架的构建——对战略管理会计概念结构基本内容的分析

本文以战略管理会计概念结构框架体系的构建为研究的主要内容，从战略管理会计概念结构框架的构建原则出发，构建出以战略管理会计的目标作为战略管理会计概念结构基本内容体系的逻辑起点的框架模式，同时封战略管理会计理论概念结构基本内容各要素进行了系统的分析。     

Algorithms to compute CM- and S-estimates for regression

Constrained M-estimators for regression were introduced by Mendes and Tyler in 1995 as an alternative class of robust regression estimators with high breakdown point and high asymptotic efficiency. To compute the CM-estimate, the global minimum of an objective function with an inequality constraint has to be localized. To find the S-estimate for the same problem, we instead restrict ourselves to the boundary of the feasible region. The algorithm presented for computing CM-estimates can easily be modified to compute S-estimates as well. Testing is carried out with a comparison to the algorithm SURREAL by Ruppert.     

On the pricing of forward starting options in Heston’s model on stochastic volatility

We consider the problem of pricing European forward starting options in the presence of stochastic volatility. By performing a change of measure using the asset price at the time of strike determination as a numeraire, we derive a closed-form solution within Hestons stochastic volatility framework applying distribution properties of the volatility process. In this paper we develop a new and more suitable formula for pricing forward starting options. This formula allows to cover the smile effects observed in a Black-Scholes environment, in which the extreme exposure of forward starting options to volatility changes is ignored.Received: July 2004, Mathematics Subject Classification (2000): 91B28, 60G44, 60H30, 60E10JEL Classification: G13It is a pleasure to thank the anonymous referee for his valuable comments and suggestions on this paper. Furthermore, we would like to thank Holger Kraft, University of Kaiserslautern, and Alexander Giese, HypoVereinsbank AG Munich, for fruitful discussions and suggestions.     

简化一般均衡模型中一般均衡点的确定

经济学教材在讨论一般均衡的时候,往往以两个人、两种生产要素、两种产品这种最简单的社会作为研究对象,它们通常只阐述了一般均衡的存在,但都没有说明这种最简单的社会一般均衡点的确定即以此作为研究对象。