山东鳞毛蕨属一新种   总被引：1，自引：0，他引：1  

李建秀  李峰 《中国科学院研究生院学报》1988,26(5):406-407

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Innovation, regional knowledge spillovers and R&D cooperation     

Michael Fritsch  Grit Franke 《Research Policy》2004,33(2):245-255

We investigate the impact of knowledge spillovers and R&D cooperation on innovation activities in three German regions. We begin by estimating the knowledge-production function in order to test for interregional difference with regard to the efficiency of innovation activities. In a second step, we analyze the contribution of spillovers from R&D effort of other private firms and of public research institutions to explain these differences. The inclusion of variables for R&D cooperation in the model indicates that R&D cooperation is only of relatively minor importance as a medium for knowledge spillover.  相似文献   

R＆D成功后的授权策略     

王彦  李楚霖 《预测》2003,22(2):51-54

本文利用一个动态博弈来讨论研发者与企业之间的一个委托与代理问题。得出授权方（研发者）在独家授权以及授权给多家企业时的最优授权合同；对于研发者来说，独家授权为最优，参与授权的企业越多，则其授权所得的收益越少；但对于总的社会福利来说，独家授权则不一定是最优，要根据具体的情况而定，与产品的市场需求及生产成本有关。  相似文献   

基于智能客户端的网络3DGIS体系框架     

王勇 《中国科技信息》2007,(17):116-118

本文将3DGIS和WebGIS相结合进行研究，提出了一种基于智能客户端的网络3DGIS体系框架，弥补了传统建立于浏览器/服务器（Browser/Server，B/S）、客户端/服务器（Client/Server，C/S）模式下的网络GIS体系的不足，最后通过实验证明该系统的可行性。  相似文献   

广西蜘蛛抱蛋属三新种     

方鼎  余丽莹 《中国科学院研究生院学报》2002,40(2):159-163

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R&D co-operation and innovation a microeconometric study on French firms     

S. Negassi 《Research Policy》2004,33(3):365-384

The scope of this paper is to report new empirical evidence on the determinants of R&D co-operation. Indeed, the literature on the capabilities of firms emphasises the role of knowledge in the performance and evolution of firms who use knowledge developed in others to build their own knowledge capital. R&D co-operation between firms is one of the many strategies by which this knowledge may be transmitted. Several theoretical models have stressed that R&D co-operation is more likely when the level of spillovers is high. While this supposition is used in many theoretical models, it has rarely been tested before. Our results do not lend strong support to this intuition. Indeed, our spillover variables (national pure spillovers, national rent spillovers and imports of machine tools), which were supposed to match the theoretical notion of spillovers used in these theoretical models have a positive but not a significant role when explaining R&D co-operation. The R&D co-operation increases with size and with R&D intensity, but not with market share. It also increases with the budget spent on paying license fees and on acquiring patents and labour from foreign firms. In this study, we also analyse the determinants of innovation. In more precise terms, we compare the effects of R&D co-operation to those played by traditional internal factors and those exerted by external, pure and rent spillovers on the innovation capacity of the firms. Our results show that the commercial success of innovations of French firms depends mainly on size, market share, R&D intensity and human capital. Inward FDI from industrialised countries exerts a positive and significant effect. The finding highlights the important role of the absorptive capacity of firms. Spillover measurements, such as the acquisition of machine tools, foreign patents, licenses, and technological opportunities have a positive impact on innovation.  相似文献   

Determining factors in the success of R&D cooperative agreements between firms and research organizations     

Eva M Mora-Valentin  Angeles Montoro-Sanchez 《Research Policy》2004,33(1):17-40

The purpose of this paper is to analyze the impact of a series of contextual and organizational factors on the success of 800 cooperative agreements between Spanish firms and research organizations, run between 1995 and 2000. Findings show that the most outstanding factors are, in the case of firms, commitment, previous links, definition of objectives and conflict, whereas for research organizations previous links, communication, commitment, trust and the partners’ reputation are more relevant. These study not only provides a comprehensive theoretical model to analyze the success of these agreements but is useful both for improving management of cooperation and for fostering collaboration both at a national an international level.  相似文献   

Dependency, resource depth, and supplier performance during industry downturn     

Tomi Laamanen 《Research Policy》2005,34(2):125-140

This paper examines the effects of supplier dependency and resource depth on the performance of telecommunications suppliers during an industry downturn. It is shown that the R&D carried out independently by a supplier relates positively to the technological depth of the supplier's offering, which is further positively linked to performance. In contrast, the dependency of a supplier shows a negative curvilinear relationship (inverted U) to performance. The research policy implication of our finding is that, in addition to collaborative R&D, a supplier should also be encouraged to initiate its own independent R&D in order to reduce the potential distress on the business during an industry downturn.  相似文献   

关于生产函数的新思考——理论研究与实证分析   总被引：6，自引：0，他引：6  

徐小飞  龚德恩  吴承业 《预测》2001,20(1):15-19

本文既考虑了本期投入对本期产出的影响，又考虑了过去累积形成的生产成果对本期产出的重要作用，并在此前提下建立一种新型生产函数-动态生产函数。运用动态生产函数与C-D生产函数对中国和中国部分省（区、市）的实证分析表明动态生产函数较符合中国和中国地区经济发展的实际。最后就各要素对产出增长率的贡献份额进行了测算。  相似文献   

中国白兔红细胞上C3b受体测定研究     

陈思义  张德成 《科技通报》1993,9(5):319-321

通过对32例健康的中国白兔红细胞上C_(3b)受体和免疫复合物的检测,其红细胞上C_(3b)受体的花环率为8.86±1.42;免疫复合物的花环率为6.84±1.03.这一结果与恒河猴等动物相比,皆有一定的特异性,也充分表明中国白兔的红细胞在清除体内危害性极大的免疫复合物上起着重要的作用。  相似文献