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《Technovation》2016
The concepts of technology convergence or technology fusion describe the phenomenon of technology overlap. Despite evidence of the higher value associated to interdisciplinary research and cross-industry innovation, few studies have investigated the characteristics of technology fusion based on patent data. This study identifies new cases of convergence relying on the International Patent Classification (IPC) of patents filed at the European Patent Office between 1991 and 2007: the first occurrence of a patent incorporating a combination of IPC subclasses signals a new instance of fusion. Duration models are employed to investigate the impact of field level characteristics derived from patent bibliometrics on the likelihood of identifying a new fusion. The results show that merges are more frequent if the focal technology fields are closely related (based on a higher number of cross citations), are characterized by wide technological scope, and are the result of an inter-firm collaboration. In contrast to previous findings, the results show that the more complex the technologies involved, the less the likelihood of their convergence or fusion. The correlation between fusion likelihood and the characteristics of the merging fields could help managers and policymakers to predict the emergence of new technology areas. 相似文献
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Sjak Smulders 《International Economics and Economic Policy》2004,1(2-3):173-194
This paper studies the effects of international capital market integration on welfare and the speed of adjustment in a two-region endogenous growth model. Monopolistic firms undertake research and development (R&D) to improve their productivity level. National and international knowledge spillovers affect the returns to R&D. The two countries differ with respect to the initial productivity level and R&D capability (which is a proxy for human capital and structural policies). Long-run productivity gaps are determined by the difference in R&D capability. Over time, there is conditional convergence in productivity levels. The speed of convergence is larger with integrated international capital markets than without. Long-run gaps in consumption levels are larger in the former situation than in the latter. Capital market integration harms (benefits) the leading (lagging) region if domestic spillovers are more important than international spillovers and differences in R&D capabilities are small.The authors research is supported by the Royal Netherlands Academy of Arts and Sciences. He thanks Lucas Bretschger, Theo van de Klundert, and Richard Nahuis, Thomas Steger, and Helmut Wagner for comments on an earlier version. 相似文献
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着力提升产业链供应链韧性和安全水平,是推动高质量发展的基本要求。基于现有研究,可以将产业链供应链韧性界定为面对重大突发事件或外部冲击时,产业链供应链免于断裂并能较快恢复原状的能力。产业链供应链韧性往往与产业链供应链安全问题息息相关。要用中国式现代化的理念和政策思维,科学把握提升产业链供应链韧性和安全水平的方法论,找准提升产业链供应链韧性和安全水平的着力点,注意发挥深化产业融合的赋能作用,培育提升产业链供应链韧性和安全水平的兴奋点。 相似文献
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[目的]产业融合是现今产业发展的重要趋势,产业融合有助于非物质文化遗产的传承及其价值的深度发掘。景宁是我国唯一的畲族自治县和华东地区唯一的少数民族自治县,县内自然村落民间文化悠远,是畲族宝贵的财富。从产业融合视角出发,构建畲族非物质文化遗产旅游开发与保护的融合发展模型,提出融合发展路径,不仅有助于畲族非物质文化遗产资源挖掘与保护,而且为我国其他少数民族集聚区域更好地抢救、保护和发展传统非遗文化提供借鉴与启示。[方法]运用文献梳理、实地调查访谈等研究方法,对景宁县的主要少数民族自然村畲族非物质文化遗产资源类型与现状进行分析。[结果]景宁县少数民族农村畲族非物质文化遗产开发存在习俗、民歌、服饰濒临消失、古老建筑、仪式举办场所濒临泯灭、医术、药物、偏方面临失传和特色工艺缺乏传承艺人等问题。[结论]景宁县少数民族农村畲族非物质文化遗产开发可选择渗透型融合、重组型融合和延伸型融合3种有效路径,在建立产业协调机制、开展非遗资源普查、培育非遗文化载体阵地和拓展旅游开发新手段、新途径等方面下功夫,更好促进畲族非物质文化遗产旅游开发与保护融合发展。 相似文献
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很多研究者认为1978年以来中国东部与中西部的发展差距可以用俱乐部收敛假说解释,由于文章利用参数和非参数估计方法对1978—2005年中国区域经济俱乐部收敛性进行检验时发现,20世纪90年代中期曾经出现了俱乐部收敛的特征,但最近几年趋于消失,所以在统筹区域发展时对俱乐部收敛特征的新变化要引起重视。 相似文献
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建设创新型国家是我国重大战略举措,而区域创新系统效率为决定创新型国家建设成败的关键因素。本文基于DEA方法,采用2002—2011年省际面板数据,计算了我国31个省域创新系统效率,并用收敛检验方法,从全国、东、中、西部4个维度,分析了区域创新系统效率是否趋同。结果发现:近10年来,在全国层面,技术效率、规模效率提高明显,而纯技术效率没有明显提升;在区域层面,技术效率呈现东部高于中部,中部高于西部;纯技术效率却呈现东部高于西部,西部高于中部;规模效率东部、中部相差不大,东、中部高于西部。收敛性分析发现:在全国层面,技术效率、纯技术效率趋同,但规模效率没有显著趋同;在区域层面,东部创新效率的趋同性远好于中、西部。 相似文献
69.
Bródy's conjecture regarding the instability of economies is submitted to an empirical test using input–output flow tables of varying size for the US economy, for the benchmark years 1997 and 2002, as well as for the period 1998–2011. The results obtained using input–output tables of various dimensions lend support to the view of increasing instability (in the sense of Bródy) of the US economy over the period considered. Furthermore, our analysis shows that only a few vertically integrated industries are enough to shape the behaviour of the entire economy in the case of a disturbance. These results may usefully be contrasted with those derived in a parallel literature on aggregate fluctuations from microeconomic ‘idiosyncratic’ shocks. 相似文献
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ABSTRACTThis paper investigates environmental efficiency and its distribution dynamics in Chinese cities. The analyses are applied the meta-frontier data envelopment analysis and the continuous dynamic distribution approach together with panel data of 286 Chinese cities at the prefecture and above-prefecture levels. The results show that during the period of 2002–2011, the average environmental efficiency in Chinese cities is well below the production frontier. The coastal cities show better performance than the central and western cities; large and extra-large cities are more efficient than small and medium cities; and the environmental efficiency for the ‘key’ cities is slightly better than that for the ‘non-key’ cities. The spatial dynamic distribution analyses indicate that the environmental efficiency of Chinese cities tends to converge. To improve environmental efficiency in the future, the government should pay more attention to the central cities, medium and large size cities in western China, and the non-key cities.Abbreviations: CPI- Consumer price index; DEA- Date envelopment analysis; DMU- Decision making unit; GDP- Gross domestic product; GMI -Group- frontier managerial inefficiency; IPCC- Intergovernmental Panel on Climate Change; MTR- Meta- technology gap ratio; NTP- Net transition probability; PAA- Prefecture and above-prefecture levels; PIM Perpetual inventory method; SFA Stochastic frontier analysis; TGI Technology gap inefficiency 相似文献