共查询到20条相似文献，搜索用时 62 毫秒
1.
文章基于科技金融视角,通过建立投入导向的BCC-DEA模型和Malmquist生产率指数对2006-2015年中国大陆30个省市科技成果产业化效率进行动态和静态全面分析,并利用Tobit回归模型探析影响科技成果产业化效率的关键影响因素,研究结果表明：我国科技成果产业化效率整体水平不高,且地区间差异明显;技术进步和技术效率变化均对科技成果产业化效率具有推动作用;政府支持力度、科技人员素质、金融中介发展水平和科技创新能力均对科技成果产业化效率具有显著影响。 相似文献
2.
科技的进步推动经济的蓬勃发展,而科技类产业的成长壮大又紧紧依赖于金融这一要素的推进。本文基于指标选取多项原则选取指标并进行因子分析以符合DEA模型投入产出指标准则。鉴于Malmquist 指数能够分析不同时期决策单元的变化并剔除了技术进步因素,相比截面数据可得到更为准确的结果。本文引入Malmquist指数,结合BCC-DEA模型,以更详尽地分析全国各省市、广东省以及广东省各地级市多时期的科技金融结合效率。研究发现广东省科技金融发展水平处于全国领先位置,但省内科技金融发展处于不平衡状况,建议广东省结合自身情况制定具备自身的特色科技金融发展策略,加强科技金融人才培养。 相似文献
3.
科技金融投入是提升地区科技创新水平的重要方式。本文运用Malmquist TFP指数对广东地区的科技金融投入创新效率进行测算和分解,得出如下结论：珠三角地区随着科技金融投入增加,其科技创新生产率和技术进步水平在不断地提高,珠三角对科技金融资源的使用与配置处于技术有效状态,科技金融投入逐渐达到规模经济最优;粤东西北地区由于科技金融投入不足,导致其科技创新效率较低,与珠三角差距在拉大。本文认为,广东省政府在今后制定科技金融政策时应注意平衡地区差距,引入市场化机制,发挥珠三角对粤东西北地区科技创新的辐射作用。 相似文献
4.
为深入探究高校科技创新投入产出效率，精准优化科技创新资源配置、加快高水平科技自立自强实现，以2017—2021年我国31个省份高校科技创新数据为基础，利用BCC模型和Malmquist指数，对不同省域、不同地区、不同城市群高校科技创新效率进行静态和动态分析。研究结果表明，（1）31个省份高校科技创新效率整体较低，17个省份高校科技创新存在投入冗余问题，29个省份高校科技创新存在产出不足问题；（2）地区间高校科技创新效率呈现出西强东弱状态；（3）城市群间高校科技创新效率呈现出“长江三角洲城市群>成渝地区双城经济圈>长江经济带>京津冀城市群”状态。由此提出建立以效率为准绳的科技资源配置策略、以效益为导向的创新成果评价机制和以服务为基础的科研政策保障体系的建议，以提升高校科技创新效率。 相似文献
5.
科技贷款风险补偿资金池作为促进金融资源与科技资源紧密结合的重要措施,对其运营效率研究很有必要。基于2013—2017年苏南11个城市的面板数据,采用BC<sub>2</sub>模型测算各市资金池运营效率,并结合Malmquist指数法对运营效率指数的变化进行分解,继而应用Tobit模型分析影响各市运营效率的相关因素。研究表明苏南地区的运营效率存在空间差异,资金投入规模不平衡;效益产出能力下降和不合理的资金投入规模是导致运营效率下降的主要原因;R D人员数和专利申请数在一定程度上对运营效率的提升起到促进作用,互联网用户数和产业集中度对运营效率的提高起到抑制作用。 相似文献
6.
运用AHP-DEA-Malmquist模型对2007—2020年杭州市及各区域科技金融效率进行静动态分析。静态分析结果表明:2007年以来杭州市科技金融结合效率呈W型,且具明显区域差异,主6区明显高于其他区域。Malmquist指数动态分析结果表明:近年来杭州市及各区域通过加大科技金融投入,引导全社会加大科技创新投入,提升企业自主创新能力,促进技术进步,科技金融结合效率得到明显提升。杭州需持续加大科技金融投入规模,优化投入结构,提高资源配置和使用效率,采取多种措施促进科技创新与技术进步,多管齐下以提升科技金融效率。 相似文献
7.
选取2006—2014年我国30个省市区科技金融投入与产出的面板数据,运用DEA-Malmquist指数法和SFA模型对全要素生产率变动和科技金融效率值进行评价。研究表明在样本期限内,我国科技金融效率上升6.56%,但是效率水平不高;科技金融效率在区域之间存在显著的差异,总体上来说东部地区明显优于中西部地区,但是江西、贵州等地的科技金融效率提升较快;我国各地区可以分为4类,大部分的投入规模与效率水平比较匹配。 相似文献
8.
通过DEA—Malmquist方法测算包括深圳在内的14个城市科技金融投入产出相对效率并进行横向比较以及动态的纵向比较。根据测度结果,认为新时期深圳发展科技金融具备优良的金融业基础且社会科技创新氛围浓厚,但科技金融治理架构不健全,人才储备不足、结构缺乏科学性。针对发展科技金融的机遇与挑战,提出深圳应建立健全市场机制,加强科技金融集聚发展,推进科技成果转化和加快人才体系构建。 相似文献
9.
以武汉市在内的13座城市2013—2017年的科技金融投入产出数据为样本,运用数据包络分析的BC~2模型(DEA-BC~2)和Malmquist指数法对武汉市科技金融的相对效率和全要素生产效率进行测算和分析,研究结果表明武汉市科技金融发展效率逐步改善并已获得相对优势。总结武汉市科技金融发展取得巨大进步的做法和经验,并提出尚待解决的问题和相关建议,如进一步完善科技型企业上市培育工作、建立政府部门协调机制等,以期为促进武汉市科技金融得到长足发展提供参考。 相似文献
10.
研究了金融对科技创新贡献的效率。选取各省市的R&D投入经费、科学家与工程师人数、金融发展水平作为投入变量;各省市的授权发明专利数作为产出变量,运用数据包络法(DEA)结合Malmquist指数分析中国各省市金融对科技创新贡献的效率。研究表明:科技创新的总体效率逐年提升,技术进步的发展态势最为良好,纯技术效率次之,规模效率最差。其中规模效率存在明显的东、中、西部差异。从投入要素的利用效率来看,各要素的利用效率均处于稳步增长阶段,金融发展水平的利用效率最高,R&D投入经费、科学家与工程师人数的利用效率旗鼓相当。 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.
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
15.
A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
16.
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
17.
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
18.
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
19.
Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
20.
《中国科学院院刊(英文版)》2014,(3)
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence 相似文献