Application of real options analysis for pharmaceutical R&D project valuation—Empirical results from a survey     

Marcus Hartmann  Ali Hassan 《Research Policy》2006,35(3):343-354

Real options analysis was often recommended as an emerging valuation technique for high-risk investment projects. Former inter-sectoral surveys have drawn an ambivalent picture of real options usage in general. In addition, there is a lack of sector-specific investigations. In the following article the results of an in-depth analysis of collected empirical data regarding the application of this new tool in the pharmaceutical sector is presented by capturing the internal view from the pharmaceutical companies themselves and the external view from the health care departments of financial service firms. R&D stage specific modi of application, reasons for reluctance in the employment of real options and their assumed future prospects are elucidated.  相似文献   

中国数字化期刊网络系统比较分析   总被引：7，自引：1，他引：7  

刘善文 《情报科学》2003,21(10):1058-1060

本文针对我国三大学术期刊网络检索系统从收录范围、全文阅读、标引质量、检索系统、检索效果等方面进行比较分析，指出我国数字化期刊网络系统还有待于完善和发展，并就此提出了自己的建议。  相似文献   

科研管理中瓶颈问题分析   总被引：2，自引：0，他引：2  

周耀烈  张大亮 《科研管理》2003,24(1):28-33

瓶颈问题可通过改变颈口面积和颈口秩序来解决。本文首先建立了颈口面积模型和颈口秩序模型，并用案例说明了其运用方法。该瓶颈模型还可用在经济分析、生产管理等许多问题的分析上。  相似文献   

因子分析在上市公司经营业绩评价中的运用   总被引：8，自引：0，他引：8  

万建强  文洲 《预测》2001,20(5):39-42

上市公司经营业绩的评价要求客观、公正,然而现实中多采用主观赋权法进行评价,这些方法的运用带有一定的主观性,为此本文度菌 提出另一种系统评价方法－因子分析法,并举例说明。  相似文献   

动态能力一定会带来创新绩效吗?——不确定环境下的多层次分析     

付丙海  谢富纪  韩雨卿  李婧媛 《科学学与科学技术管理》2016,(12):41-52

在中国转型经济背景下,基于资源基础观和动态能力观,从多层次视角引入动态能力,分析其在不确定性环境中对我国新企业创新绩效的影响机理。利用长三角232家新企业数据进行实证分析,研究表明:动态管理能力、企业动态能力均对创新绩效具有显著正向影响,而网络动态能力对创新绩效呈现出U型影响;环境不确定性负向调节动态管理能力与创新绩效的关系,正向调节企业动态能力、网络动态能力与创新绩效的关系。  相似文献   

区域创新系统组织结构与运行机制的评价与比较研究   总被引：1，自引：0，他引：1  

任胜钢  李燚  彭建华 《科学学与科学技术管理》2007,28(6):81-85,151

就区域创新系统组织结构与运行机制构建了各自评价指标体系，收集整理了相关数据并利用层次分析法确定了各指标权重，对区域创新系统组织结构与运行机制进行了定量分析。利用分析结果对我国27个省、自治区进行了比较分析，并提出相关政策建议。  相似文献   

A hybrid generative/discriminative approach to text classification with additional information     

Akinori Fujino  Naonori Ueda  Kazumi Saito 《Information processing & management》2007

This paper presents a classifier for text data samples consisting of main text and additional components, such as Web pages and technical papers. We focus on multiclass and single-labeled text classification problems and design the classifier based on a hybrid composed of probabilistic generative and discriminative approaches. Our formulation considers individual component generative models and constructs the classifier by combining these trained models based on the maximum entropy principle. We use naive Bayes models as the component generative models for the main text and additional components such as titles, links, and authors, so that we can apply our formulation to document and Web page classification problems. Our experimental results for four test collections confirmed that our hybrid approach effectively combined main text and additional components and thus improved classification performance.  相似文献   

Analyzing imbalance among homogeneous index servers in a web search system     

C.S. Badue  R. Baeza-Yates  B. Ribeiro-Neto  A. Ziviani  N. Ziviani 《Information processing & management》2007

The performance of parallel query processing in a cluster of index servers is crucial for modern web search systems. In such a scenario, the response time basically depends on the execution time of the slowest server to generate a partial ranked answer. Previous approaches investigate performance issues in this context using simulation, analytical modeling, experimentation, or a combination of them. Nevertheless, these approaches simply assume balanced execution times among homogeneous servers (by uniformly distributing the document collection among them, for instance)—a scenario that we did not observe in our experimentation. On the contrary, we found that even with a balanced distribution of the document collection among index servers, correlations between the frequency of a term in the query log and the size of its corresponding inverted list lead to imbalances in query execution times at these same servers, because these correlations affect disk caching behavior. Further, the relative sizes of the main memory at each server (with regard to disk space usage) and the number of servers participating in the parallel query processing also affect imbalance of local query execution times. These are relevant findings that have not been reported before and that, we understand, are of interest to the research community.  相似文献   

江苏省城镇居民消费支出结构分析与预测   总被引：5，自引：0，他引：5  

欧邦才  王慧敏  李金祥 《预测》2002,21(1):25-28

居民家庭消费支出结构反映了人们对各类商品的需求结构。影响居民家庭消费支出的因素很多,但其中收入水平变化起决定性作用。本文利用扩展线性支出系统模型（ELES）,着重分析江苏省居民家庭消费支出结构变化与收入变化的关系,从而提示江苏省居民家庭消费支出结构的量变特性,并对其“十五”时期消费结构作出预测。  相似文献   

台湾“开放型”科技产业政策研究   总被引：2，自引：0，他引：2  

朱斌 《科学学研究》2001,19(1):58-63

本文以台湾“科技导向”的发展战略为脉络 ,分析了“开放型”科技产业政策产生的动因及实施效果 ;剖析了由“开放”转向“紧缩”的弊端 ;对科技产业政策的稳定性与协同性提出了若干浅见。  相似文献