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1.
基于珠三角130家企业的问卷调查数据,实证分析了企业联盟网络特征对其创新绩效的影响以及外部环境不确定性、内部资源与能力的调节效应。研究结果表明,企业联盟网络的关系强度对其创新绩效具有显著的正向影响;企业在其联盟网络中占据的中心性位置对其创新绩效也具有显著的正向影响;外部环境不确定性正向调节企业联盟网络的关系强度与其创新绩效间的正向关系;内部资源与能力负向调节企业在其联盟网络中占据的中心性位置与其创新绩效间的正向关系。 相似文献
2.
利用498家高新技术上市公司的数据,探讨供应链集成对企业技术创新绩效提升的作用机制。研究发现,企业供应链集成显著正向影响企业技术创新绩效,技术创新资源配置中研发资金配置和人力资源配置均显著正向调节供应链集成与企业技术创新绩效的关系,协同创新程度在企业供应链集成与技术创新绩效之间起到正向调节作用。最后,从技术创新资源配置等角度向企业管理部门提出政策建议,为企业提升技术创新绩效提供实践指导。 相似文献
3.
基于社会网络理论及社会认知理论,论文构建了企业网络关系、管理者环境认知与企业环境技术创新行为关系模型,根据219家中国资源型企业问卷调查数据,运行结构方程模型进行实证分析。研究表明：企业网络关系显著正向影响企业管理者环境认知,企业管理者环境认知显著正向影响企业环境技术创新行为,企业管理者环境认知在企业网络关系对企业环境技术创新行为影响中起部分中介作用。研究成果揭示了企业环境技术创新行为的社会嵌入性及自主性,可以丰富企业环境技术创新以及政策理论。 相似文献
4.
企业嵌入于网络,网络结构特征影响企业竞争优势的建立,同时受到企业知识转移能力的影响。构建网络结构特征、知识转移能力和企业竞争优势的理论模型,检验网络稳定性、网络中心位置和联系强度与企业竞争优势的关系,以及知识转移能力的调节作用。基于164份问卷数据研究,结果表明,网络稳定性正向影响企业竞争优势,联系强度与企业竞争优势是一种U型关系。吸收能力正向调节网络稳定性、网络中心性与企业竞争优势的关系。扩散能力增强网络中心性对企业竞争优势的正向影响,而减弱网络稳定性对企业竞争优势的积极影响。 相似文献
5.
通过文献回顾与理论分析,构建了联盟能力、联盟网络构型和联盟绩效之间的理论模型,并基于195家高新技术企业的问卷调查数据进行实证研究.研究发现,企业联盟能力对其联盟网络关系质量以及其占据联盟网络的中心性位置具有显著的正向影响;联盟网络关系质量以及占据联盟网络的中心性位置对企业联盟绩效都有显著的正向影响;企业联盟能力通过影响其联盟网络构型来对联盟绩效产生显著的间接影响. 相似文献
6.
网络密度、学习能力与技术创新的关系研究 总被引：1，自引：0，他引：1
基于企业网络理论观点研究了企业网络密度、企业学习能力和技术创新之间的关系,并以广东省高新技术企业或民营科技型企业为样本进行问卷调查,对整体模型进行了实证研究。结果表明,网络密度对企业学习能力和技术创新绩效均有显著的正向影响,网络密度还可以通过企业学习能力对技术创新绩效产生间接影响。另外,以企业规模和研发投入为控制变量对上述变量之间的关系进行了研究。研究发现,在小规模企业中,企业网络密度、学习能力和技术创新之间不存在显著影响关系。 相似文献
7.
将供应商参与、客户参与、跨部门参与纳入一个统一的框架,通过实证分析,检验了由三者组成高阶、多维构念—协作能力的存在性;研究了协作能力对企业技术创新类型的影响,并进一步分析了环境动态性的调节作用。结果表明:利用协作能力分析供应链参与对创新的影响,较直接分析其对创新的影响得到的结果更全面、更符合实际;协作能力正向促进企业的技术创新;环境动态性正向调节协作能力与突破式创新的关系。 相似文献
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9.
《科研管理》2017,(Z1)
在缺乏资源和核心竞争力的背景下,中小企业嵌入合作网络中进行技术创新,对提升企业成长性有重要意义。基于286家中国中小企业的调查数据,本文采取多元层级回归方法,对网络嵌入性、技术创新、技术动荡性与企业成长之间的关系进行了理论探讨和实证检验,试图揭示网络嵌入性、技术创新对企业成长的差异性影响以及转化机制,并对技术动荡性在网络嵌入性、技术创新与企业成长的关系中所扮演的调节作用进行实证分析。实证结果发现,网络嵌入性的网络中心度维度与中小企业企业成长呈显著的正相关关系,技术创新在网络中心度和企业成长关系之间起部分中介作用;技术动荡性负向调节网络中心度和技术创新的关系,正向调节技术创新和企业成长的关系。 相似文献
10.
不同网络嵌入方式对企业创新绩效的影响是存在显著差异的。构建了网络嵌入、学习能力和技术创新绩效之间的理论模型,通过运用结构方程模型对广东省高新技术与民营科技型企业为样本的问卷调查数据进行实证分析。研究结果表明:(1)网络结构嵌入对技术创新绩效没有直接的显著影响,也无法通过学习能力的中介对其产生间接的影响作用;(2)网络关系嵌入对技术创新绩效不仅有直接显著的正向影响,而且还能通过学习能力的部分中介作用对技术创新绩效起到显著的正向影响;(3)在小规模企业中,网络密度对于技术创新绩效的作用并不显著。研究结论进一步深化了技术创新理论,对企业技术创新的提升有一定指导意义。 相似文献
11.
Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
12.
A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
13.
Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
14.
《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
15.
《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
16.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
17.
Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献
18.
Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
19.
Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
20.
Leah A. Lievrouw 《The Information Society》1998,14(2):83-96
The main premise of this article is that in information societies generally, and in virtual social contexts particularly, a distinctive style of interaction to facilitate the communication of difference, heterotopic communication , has emerged. It rests on two cultural foundations: an ideological belief in the positive, socially integrating power of communication, and a prevailing ethic of instrumental rationality, subjective individualism, and strategically practiced self-interest. The former is demonstrated by the use of simulation and spectacle as sources of information; exhibitionism/voyeurism as a communicative style; and the awareness of surveillance. The latter is seen in the competitive use of knowledge as a commodity; a surface globalism masking deep parochialism; lateral as well as vertical information inequity; and the use of public versus private as strategies for engagement rather than as spaces. Those who engage in heterotopic communication resort to their 'own devices' both in the sense of personal agendas, strategies, interests, and interpretations, and in the form of the telecommunication tools that help realize them. These personal and technological devices allow individuals with the right educational and technical resources to avoid exposure to disagreement, difference, or other information that does not serve their direct purposes or reflect their particular views of the world; yet they also help convey the appearance of openness, availability, and cooperation. This style of interaction is used strategically in combination with information and communication technologies to gain social or economic advantages, but it may encourage social separatism and parochialism, inhibit the negotiation of disputes, and emphasize competing interests. 相似文献