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1.
在中国追求区域协调发展和城镇化健康发展的大背景下,城市群平衡增长要同时实现整体增长与缩小内部增长差距两大目标．然而．区域经济政策对这两个目标实现的促进机制与效果问题却长期困扰着决策层。本文系统整理了国内外有关区域经济政策促进城市群经济平衡增长领域的理论与实证文献．按照作用对象将区域经济政策归纳为城市间要素流动、投入一产出联系、技术扩散和转移支付四个维度,发现各维度区域经济政策对城市群整体增长的促进机制与促进效果比较明确．但是对城市群内部增长差距缩小的促进机制与促进效果均存在争议．争议主要集中于政策间交互作用和城市间功能与分工差异。但从经济学框架上对这种政策复合作用问题进行系统分析的文献并不多．而利用系统仿真方法研究城市群发展的文献为考察区域经济政策簇复合作用效果提供了方法支持。 相似文献
2.
财政支出与财政收入对经济增长影响的实证分析 总被引：1，自引：0，他引：1
本文利用修正后的汉森模型对我国80年代中期以来财政支出与财政收入政策的总效果及其主动效果和自动效果进行了计量分析,结果表明,财政政策的总效果即对GDP的增长率贡献约为12.23%.其中,主动政策对经济增长的贡献率较大;而主动效果中,政府购买支出效果远大于税收的效果,说明了政府财政支出是促进我国经济增长的重要因素;在自动效果中,税收的效果大于政府购买支出的效果,说明我国的税收对经济的稳定效果是非常明显的. 相似文献
3.
改革开放以来我国财政政策效应的实证研究 总被引：1，自引：0，他引：1
通过构建财政政策效应模型进行计量分析,结果表明:财政政策的总效果即对GDP的增长率贡献约为12.23%。其中,主动政策对经济增长的贡献率较大;而主动效果中,政府购买支出效果远大于税收的效果,说明了政府财政支出是促进我国经济增长的重要因素;在自动效果中,税收的效果大于政府购买支出的效果,说明我国的税收对经济的稳定效果是非常明显的。 相似文献
4.
本文基于Romer创新驱动经济增长模型,引入政府基础研究与应用研究投资,通过求解一般均衡与数值模拟发现,政府投资基础研究比投资应用研究更有利于经济的持续性增长。在此基础上,采用1991-2015年中国时间序列数据,通过构建政府基础研究、应用研究投资与经济增长的VAR模型考察了三者之间的动态影响关系,研究发现：（1）政府投资应用研究虽在短期内可实现显著经济增长,但从长期看政府投资基础研究会获得更高水平的增长。（2）政府投资应用研究对经济增长的促进作用在第5个滞后期达到最大,政府投资基础研究对经济增长的促进作用在第8个滞后期达到最大,即充分发挥政府基础研究投资的经济增长效应需要相对更长的时间。（3）政府基础研究投资不仅可以直接促进经济增长,还可以带动政府应用研究投资从而间接促进经济增长,即政府基础研究投资是促进经济增长的源动力。本文研究结论为科学制定政府R&D政策提供了理论和经验依据。 相似文献
5.
地方财政科技投入对广东省经济增长的影响:基于面板数据的实证分析 总被引：1，自引：0，他引：1
依据内生经济增长理论,采用广东省21个地市2000—2009年的面板数据,运用面板单位根和协整检验等现代计量方法分析财政科技投入对地方经济增长的影响。结果表明财政科技投入对广东省区域经济增长起到了积极的推动作用,并且人力资本与政府财政科技投入的结合对经济增长作用显著。基于这一结论,提出了相关政策和建议,从而使财政科技投入更好地发挥其作用,来促进区域经济又好又快发展。 相似文献
6.
经济增长会促进保险业的发展.然而,寿险业与非寿险业性质不同,差异较大.通过建立省际面板数据模型,对寿险业与经济增长的关系单独做实证分析,考察不同区域经济增长的异同对国内不同省份寿险业发展的实际影响.采用国内最新的省际数据,经过平稳性检验、模型形式选择、参数估计和稳健性检验等规范的计量步骤后,得到稳健的回归结果.定量揭示了经济增长对于国内寿险业发展的刺激作用和区域性因素对寿险业的不同影响.根据此结果,向全国和区域寿险公司、中央和地方政府、保险监管机构提出经营管理、宏观调控、风险防范等方面的政策建议.政策制定者可以根据建议及时调整经济政策,更好地促进经济与寿险行业的协调发展. 相似文献
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8.
基于过程的政府R&D投入绩效分析 总被引：1，自引：0，他引：1
在综述现有文献的基础上,建立基于政府R＆D投入→企业R＆D投入→技术进步→经济增长过程的政府R＆D投入绩效分析框架和计量模型.模型的实证结果表明,政府R＆D投入对企业R＆D投入的引致效应比较显著,我国政府R＆D投入第一个环节的效果较好;企业R＆D投入对于技术进步的引致效应比较显著,同时可以反映政府R＆D投入在其中的作用.在经济增长模型深化的基础上,分析表明技术进步对促进经济增长、降低能源消费和减少污染方面的作用尚未显现,政府R＆D投入第三个环节的效果不太明显,创新成果的转化工作有待进一步加强. 相似文献
9.
一、关于预测使用者的概况对于工业化国家而言,经济预测勿庸置疑已成为政府决策的中心。英国的经验证明了这一点。过去十余年中,英国在经济政策方面推行了弗里德曼货币主义学派的观点(包括撒切尔政府,卡拉汉政府,海勒政府)。他们需要用经济预测,计量经济方法来分析他们所推行的政策的效果、指明与他们的货币供应量增长目标相一致的政府举债规模,帮 相似文献
10.
经济增长能够创造更多的就业机会,促进就业的增长。然而,近年来四川省经济高速增长,而失业率却不断上升,究其原因,是由于经济结构和产业结构的调整。对此,政府应采取相应的政策和措施,以增加就业。 相似文献
11.
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
12.
《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
13.
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
14.
《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
15.
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
16.
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
17.
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
18.
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
19.
Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
20.
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