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| Characteristics, Evolution and Enlightenment of Patent Technology Bidirectional Flow Network in Chengdu-Chongqing Region |
| Zeng Longji1,Qin Ying2,Deng Yajuan1,Wang Yuandi1 |
| (1.School of Business, Sichuan University, Chengdu 610061，China;2.Sichuan Science and Technology Development Research Center, Chengdu 610041，China) |
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Abstract The essence of realizing the strategic goal of Chengdu Chongqing region becoming an important growth pole and a new power source for national high-quality development is to firmly establish the concept of "one game of chess", implement the concept of integrated development, and promote the rational flow and effective aggregation of various production factors. Technological factors are the core components of various production factors. Patent technology, as an output of innovation activities, can fully grasp the operation situation of the existing innovation system by analyzing the bidirectional flow of patent technology knowledge among regions, so as to provide enlightenment for talent flow and innovation cooperation. At present, China is facing great changes rarely seen in a century. As an important part of the new development pattern of "dual circulation", the construction of Chengdu-Chongqing economic circle in the western region is deeply concerned by the central and local government. For a long time, China's eastern, central and western regions have certain differences in economic development and marketization level, product and factor market development degree, intellectual property system and so on. Chengdu-Chongqing region is in the western region with relatively backward intellectual property protection, realizing the integrated development of the Chengdu-Chongqing economic circle and representing a model of high-level integrated development in inland regions, it is very important to analyze the characteristics, current situation and evolution law of technology bidirectional flow network in Chengdu-Chongqing region. #br#By reviewing the literature, it is found that most research on technology flow network is based on the one-way innovation cooperation perspective of patent cooperation data or paper co-authorship, and there is little analysis from the perspective of bidirectional technology flow, and subject to the availability of data, the domestic research on the innovation cooperation of Chengdu-Chongqing economic circle only subdivides the region to the provincial and municipal level, not to the district and county level. In this paper, 15 cities in Sichuan Province and 4 districts in Chongqing are included in the research scope to build a bidirectional flow network of patent technology in Chengdu-Chongqing region. Liangjiang New Area in Chongqing is a national new area and does not belong to Chongqing, but it plays an important role as the strategic engine of the economic circle. Therefore, it is retained and classified into the main urban area of Chongqing for analysis. Patent is the core presentation form of a technology. As an important way of technology flow, its licensing and trading both play a great role in the bidirectional flow network of patent technology. In general, invention patents are considered to be the highest technical content, the most economic and innovative value patents, and their signal effect is also more significant than other patents, while the patent licensing data has only been filed in the State Intellectual Property Office since 2002. Therefore, this paper selects the invention patent licensing and trading data in Chengdu-Chongqing region from 2002 to 2019 to build a bidirectional flow network of patent technology. The patent data comes from the official website of the State Intellectual Property Office. Based on the topology and spatial correlation effect, this paper makes a comprehensive analysis on the characteristics and evolution law of the bidirectional flow network of patent technology. #br#In this paper, UCINET software is mainly used to construct the technology bidirectional flow network in Chengdu-Chongqing region from 2002 to 2019, and draw the social network association diagram. Further analysis is made on the density, centrality, cohesive subgroup and intermediary role of the technology bidirectional flow network, and the following conclusions are drawn. Firstly, the technology bidirectional flow network in Chengdu-Chongqing region is becoming more and more complex, but it presents a "dual core" structure as a whole, Chengdu and the main urban areas of Chongqing are at the core of the social network. The phased evolution trend shows that the bidirectional technology flow network is becoming more and more complex, but it has always maintained the "dual core" node structure. Generally speaking, the bidirectional flow of technology mostly occurs in their respective administrative regions; Secondly, the overall density of technology bidirectional flow network in Chengdu-Chongqing region is at a low level, the density and quantity scale of each subgroup are quite different, along with the integration between subgroups is poor. Thirdly, the bidirectional flow of technology in different regions within the social network of Chengdu-Chongqing region is unevenly distributed. There are members in different regions in the subgroup of the bidirectional flow of technology network, playing different intermediary roles, and regions with more innovation resources and higher innovation ability are better at obtaining innovation benefits from other regions, which has a small radiation and driving effect on other regions.#br#
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Received: 14 April 2021
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