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1.
基于2002-2008年省级层面十二大类(HS码)产品的出口数据,测度了28个省级区域劳动和资本密集型产业的出口技术复杂度赶超系数,进而运用门槛效应模型对赶超的经济增长效应进行了非线性检验,研究结果显示:首先出口技术复杂度赶超对经济增长的作用力呈现出明显的非线性;其次执行出口技术复杂度赶超策略不一定能促进本地经济增长,且我国劳动密集型产业出口技术复杂度赶超对经济增长的作用力存在显著的"收敛区间";最后东部地区资本密集型产业及东中部劳动密集型产业的出口技术复杂度赶超力度可进一步加强,而大力赶超的策略并不适合中西部地区资本密集型产业。 相似文献
2.
对2002—2010年中国创意产品贸易出口技术复杂度进行定量计算,分析了中国当前创意产品贸易出口的发展趋势及特点.分析认为,中国创意产品贸易出口技术复杂度呈现上升趋势,但与样本国家的平均水平相比,相对出口技术复杂度持续下降.这与中国以劳动密集型产品为主、技术密集型产品缺乏竞争力的出口结构有关.中国应高度重视创意产品贸易的发展,增加科研投入,挖掘中国传统文化,实现各种文化因素的融合,以提升中国创意产品贸易的国际竞争力. 相似文献
3.
旨在研究中国地区不均质实际知识产权保护对出口复杂度的影响程度及作用机理。利用2003-2011年中国30个省份分行业的贸易数据测算省际出口技术复杂度,采用知识产权执法数据测算中国省际实际知识产权保护水平。全国样本的实证研究表明,中国地区不均质实际知识产权保护对出口技术复杂度的影响呈现倒"U"型关系,FDI、在校大学生比例以及研发支出比例的上升对出口技术复杂度产生起到了积极作用,而开放程度以及基础设施水平对出口技术复杂度的影响不明显。分地区的实证研究表明,实际知识产权保护水平、研发支出比例、基础设施和开放程度对出口技术复杂度的影响出现较大的地区差异,而在校大学生比例与FDI可以促进各地出口技术复杂度的提升。因此,知识产权保护和知识产权反垄断一定要并行,但这是一个冰刃上的平衡。我们需要一个持续规范长效的知识产权执法制度,而不是一阵风运动式的短期行动。 相似文献
4.
本文测算了39个国家 1995-2016年高技术产业出口技术复杂度,结合理论模型的推导,探讨了OFDI对母国高技术产业出口技术复杂度的机制,并且运用动态面板数据模型的system GMM方法实证检验了OFDI对母国高技术产业出口技术复杂度的影响。结果表明OFDI能够提升母国高技术产业出口技术复杂度。经过进一步分析,发现OFDI仅对发展中国家高技术产业出口技术复杂度具有显著的提升作用,而对发达国家却在表现出一定程度的抑制作用。此外,FDI、研发投入、人力资本、对外开放度以及自有技术均能促进一国高技术产业出口技术复杂度的提升,而资本禀赋对发达国家和发展中国家高技术产业出口技术复杂度的影响呈现差异性。 相似文献
5.
《中国科技论坛》2019,(7)
本文界定出新能源产业的产品范畴,基于COMTRADE数据,采用技术复杂度实证测算2007—2016年中国新能源产业出口技术结构动态变迁。得出新能源产业出口呈波动增长态势,金融危机与贸易壁垒负面影响较大,出口产品主要集中于中高技术复杂度产品,高技术复杂度产品出口比重偏低,出口技术结构呈恶化趋势,整体技术水平处于全球产业价值链中端,主要新能源出口国(或地区)整体技术水平竞相快速提升,日韩与马来西亚新能源产业技术水平提升速度高于中国等结论。提出充分利用比较优势,加大研发投入,提升高技术复杂度产品出口比重,丰富国际技术合作形式,顺应"一带一路"倡议,多元化出口市场及海外投资等对策。 相似文献
6.
作为世界上最大的2个发展中国家、金砖四国的成员国以及新兴经济体的代表,中国和印度已成为比较研究的重要对象。两国在要素禀赋和经济发展方面有着许多相似之处,但在高新技术产品出口贸易的发展上却有所不同。文中运用出口复杂度指数研究两国高新技术产品出口技术结构以及出口整体技术水平,研究发现中印两国高新技术产品出口技术结构都在不断优化,整体技术水平都在不断提升,但都低于世界平均水平,其中印度在高新技术出口产品上的复杂度更高,高新技术产品出口技术结构优于中国,出口整体技术水平也领先中国,且存在两国技术水平差距逐渐拉大的趋势。 相似文献
7.
中国的省际调出技术复杂度———演变趋势驱动因素与分布特征 《科学学研究》2021,39(7):1219-1228
省际调出技术复杂度的提升,不仅关系到中国大国经济效应的发挥,而且关系到中国经济的高质量发展。本文基于中国6年30省的投入产出表,采用多种方法,系统地分析了1987-2012年中国的省际调出技术复杂度,主要的发现有：（1）中国的省际调出技术复杂度在显著提升,且各省份的技术复杂度呈现收敛趋势。（2）沿海省份的省际调出技术复杂度高于内陆省份的省际调出技术复杂度,但内陆省份具有明显的“追赶效应”。（3）在中国省际调出技术复杂度提升的过程中,部门内效应起主要作用,部门间效应起次要作用。（4）中国省际调出技术复杂度的提升路径较为合理,属于增长主导型,并伴随着省际不平等的缩小。（5）中国各省省际调出技术复杂度的排名等级具备一定的稳定性;但位于中高等级的省份仍面临较大的降级风险,位于低等级的省份实现等级跃升的难度较大。 相似文献
8.
【目的】科学测度中国海洋经济绿色全要素生产率，并基于多维视角对其空间异质性进行深层次的研究分析，对于促进陆海统筹战略下蓝色经济空间拓展有重要意义。【方法】本文运用全局参比的非径向方向性距离函数模型和Global Malmquist-Luenberger指数，对2007—2018年中国海洋经济绿色全要素生产率进行科学测度，随后从时空两大维度出发，采用Dagum基尼系数、Kernel密度方法和Markov链方法对其空间异质性进行深入揭示，并运用α收敛和β收敛探究其收敛性。【结果】研究表明：(1)中国海洋经济绿色全要素生产率呈现稳步提升的趋势，但存在明显的阶段性特征与空间非均衡性。(2)中国海洋经济绿色全要素生产率的空间差异整体呈上升趋势，并表现出“上升—下降—上升”的阶段性波动特征，呈现“东部海洋经济圈—北部海洋经济圈—南部海洋经济圈”依次递减的空间分布格局。(3)中国海洋经济绿色全要素生产率的两级分化现象先加剧后得到改善，空间异质性变动明显。(4)中国海洋经济绿色全要素生产率呈现出阶段性的收敛和发散特征，其中“十一五”“十三五”时期发散，“十二五”时期收敛。【结论】本文认为，“十四五”时... 相似文献
9.
通过多维度固定效应模型研究中国知识产权保护对企业出口技术复杂度的影响.结果 发现,(1)整体来看,中国知识产权保护与企业出口技术复杂度之间存在显著的倒U型关系;(2)从不同所有制企业来看,相比于内资企业,外资企业中知识产权保护与企业出口技术复杂度之间倒U型关系较强;(3)从不同地区企业来看,东部地区知识产权保护与企业出口技术复杂度之间仍存在倒U型关系,中部和西部地区呈现线性促进关系.综合而言,由于中国的特殊国情和地区发展不平衡的现实背景,中国应适当地提高知识产权保护力度但又不能太过激进. 相似文献
10.
区域金融发展的收敛机制与中国区域金融发展差异的变动 总被引：5，自引：0，他引：5
区域金融发展是否会走向收敛,其收敛的机制是什么?这一直是一个难解的谜.本文从决定金融发展的生产者受教育程度、社会福利水平、商品交易效率、金融交易效率和地域固有因素出发.研究了区域金融发展的收敛机制,并考察了中国区域金融发展差异的变动特征与变动趋势.研究发现.区域金融发展差异的变动路径可能呈现"草帽"型特征,而改革后中国区域金融发展差异表现的"U"型特征只不过是市场化趋异期的片断特征.而不是区域金融发展差异的全程特征.实证分析还显示,在1992-2004年,中国省际间金融发展差异呈现加速扩张的态势. 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.
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
16.
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
17.
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
18.
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
19.
《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
20.
Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels 总被引：1，自引：0，他引：1
《中国科学院院刊(英文版)》2014,(3):267-268
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese 相似文献