Search Results (10)

The Yangtze River Delta region is facing the demand for high-quality economic development, and the study of urban network as a manifestation of the interaction between cities is becoming increasingly important. This study focused on the node structure of the urban network in the Yangtze River Delta urban agglomeration from 2010 to 2021, used the modified gravity model to construct a polycentric city network from the perspective of economic flow, used the spatial Durbin model for spatial econometric analysis, and identified the conduction path through the two-step method of causal stepwise regression mediating effect test. The results show that Shanghai, as the core node city, has significantly promoted the economic development of Hangzhou, Nanjing, Hefei, and other cities and formed a metropolitan network structure characterized by “one core and five circles”. Under different spatial weight matrices, the polycentric city network has a significant positive impact on economic growth, and its impact is not only related to the economic level of the city itself but also closely related to the economic status of its neighboring cities. The polycentric city network significantly enhances economic growth by accelerating the flow of regional factors, promoting regional industrial division of labor and cooperation, and enhancing regional innovation capabilities. Full article

Taiwan (China) is a global leader in the electronic information industry. However, previous studies have paid limited attention to the impact of international trade policies on Taiwan’s electronic information sector. This study aims to examine the effects of the Regional Comprehensive Economic Partnership (RCEP) on the global value chain (GVC) of Taiwan’s electronic information industry. Using the GTAP 10.0 database, this study applies the GVC-CGE model to measure the GVC participation and position index of the electronic information industry in Taiwan (China), Mainland China, and other RCEP member economies. The results show that, in the short term, the RCEP does not have a significant impact on Taiwan’s electronic information industry’s participation or position in the global value chain. However, in the long term, it is likely to negatively affect Taiwan’s forward participation and position. Economies within the RCEP that possess technological or resource advantages are expected to see improvements in their electronic information industry’s value chain position. As a result, Taiwan’s electronic information industry faces the risk of being displaced in the global division of labor. These findings offer valuable insights into the position of the electronic information industry of Taiwan (China) within the global value chain, highlight the importance of regional economic cooperation, and provide crucial information for the development of this industry. This study reveals how the Regional Comprehensive Economic Partnership contributes to the regional reconfiguration of global value chains and its potential impacts on Taiwan’s electronic information industry. We suggest that Taiwan should engage more actively in East Asian regional economic cooperation to mitigate these potential negative effects as much as possible. Full article

Urban agglomeration (UA) is a highly developed spatial form of urban complex, which is one of the important carriers of regional economic cooperation, international industrial division of labor, and flow of capital and information elements. In China, urban agglomerations (UAs) have become the spatial subject of the national new-type urbanization strategy since the early 21st century and have made irreplaceable contributions to China’s urbanization and economic development. The Guanzhong Plain urban agglomeration (GPUA) is an important economic growth pole in northwest China and a key node in China’s open-door pattern. Exploring the spatial and temporal characteristics and driving factors of its economic development will be an important revelation for the promotion of high-quality economic development of the GPUA. This paper characterizes the level of economic development of GPUA with a long series of nighttime light data between 2002 and 2022. The standard deviation ellipse, spatial autocorrelation analysis, the economic difference index, and grey correlation analysis are used to analyze the characteristics of spatio-temporal evolution, internal diversity, and driving factors of economic development of the GPUA. The results show that the economic development level of the GPUA continued to increase from 2002 to 2022. The spatial distribution of the GPUA economy is “northeast-southwest” axial distribution, and the center of gravity of economic development gradually moves westward. The differences in the level of economic development within the GPUA show a typical core–periphery structure, but the degree of difference tends to weaken over time. The internal expansion force and economic promotion force were the dominant factors for the economic development of the GPUA in the early years. However, with the passage of time, scientific and technological support and government support have gradually become the main influencing factors for the economic development of the GPUA nowadays. Full article

In the context of a new round of scientific and technological revolution and industrial transformation, inter-regional international cooperation is facing fierce competition and sustainable development pressure in domestic, geopolitical, and global industrial chains and that a rational division of labor and coordination of cooperative innovation subjects, key technology nodes, and technology subgroups are of great importance to improve and upgrade the industrial and supply chain cooperation of China–Japan–ROK, as well as to enhance the efficiency of cooperation and innovation. This study uses the patented technical cooperation and innovation dual network structure analysis model and social network analysis (SNA) to analyze the dual network relationship and evolution characteristics of patent technology cooperation and innovation at different stages, based on data from 5912 invention patents applied by China, Japan, and ROK. We find that the China–Japan–ROK patent technology collaboration network is unmatched in size, and the areas of cooperation are expanding on a daily basis. However, the network’s innovation activities have not yet stabilized, and there is still room for collaborative innovation among enterprises to grow and evolve. Multinational corporations in Japan and South Korea have occupied the network’s core position at various times, forming seven key innovation groups with high-tech enterprises such as Samsung Display, Samsung Electronics, Hyundai Motor, NEC, and LEKIN as core nodes. Patents such as H01L, G02F, H04N, H01M, and G02B dominate the key technology nodes and technology subgroups, indicating that high-tech patents such as electronic information technology, semiconductors, displays, and automobile manufacturing are the primary areas of cooperation and innovation between China, Japan, and South Korea. Full article

Since the Organisation for Economic Cooperation and Development presented its comprehensive Innovation Strategy in 2010, numerous countries have been updating their innovation policies. Subsequent to the promulgation, the innovation policies of Japan shifted the focus from discipline-specific to social issue-oriented approaches. This study investigates the response of the Japanese academic sector to this policy shift and the characteristics of the research projects associated with innovation policy by utilizing descriptive statistics from policy documents and the database of Grants-in-Aid for Scientific Research. The findings reveal that Japanese researchers have increasingly aligned their efforts with government-proposed research themes in recent years, with a notable shift toward short-term research projects. Moreover, Japanese universities are undergoing reforms that are transforming them into entrepreneurial institutions by altering incentive structures. Although these reforms may yield short-term research outcomes, they may not always address long-term societal needs. The narrowing focus on research themes could restrict the potential impact of research and impede the development of innovative solutions to societal challenges. From this viewpoint, assessing the relationship between government-proposed research themes and the research productivity of Japan is critical. Universities and public research institutions play a vital social role in broadening the foundational knowledge base through basic research, while private enterprises may lack the motivation to invest in research and development with low appropriability. These results may be beneficial for policymakers in reconsidering the division of labor in industry-academic collaboration in a knowledge-intensive economy. Full article

This paper examines the impact of cross-sectoral climate policy on forest carbon sinks. Due to the complexity of the climate change issue and the professional division of labor among government departments, cross-sectoral cooperation in formulating climate policy is a desirable strategy. Forest carbon sinks play an important role in addressing climate change, but there are few studies focusing on forest carbon sinks and cross-sectoral climate policies. Thus, based on the panel data of 30 provinces and cities in China from 2007 to 2020, this paper establishes a benchmark regression model and a spatial panel model to analyze the impact of cross-sectoral climate policies on forest carbon sinks. We find that cross-sectoral climate policies positively impact forest carbon sinks. Under the influence of the “demonstration effect”, we find that cross-sectoral climate policies have a positive impact not only on the forest carbon sinks in the region but also on those in the neighboring region. Further analysis shows that for provinces with less developed forestry industry and small forest areas, the positive effect of cross-sectoral climate policies on forest carbon sinks is more obvious. Overall, this paper can serve as an important reference for local governments to formulate climate policies and increase the capacity of forest carbon sinks. Full article

As an important part of the economic system of urban agglomeration, the agglomeration of producer services (APS) has become a key contributor to regional low-carbon development. This study analyzes the spatial effect of APS on carbon emission efficiency (CEE) as well as its mechanism and heterogeneity using the panel data of 41 cities in the Yangtze River Delta (YRD) region from 2005 to 2019. First, a U-shaped relationship exists between APS and CEE in both local and neighboring areas. Second, the non-linear relationship between APS and CEE is generated by allocation effects, structural effects and technology effects. Third, the effect of APS on CEE is constrained by the heterogeneity of urban characteristics, in which human capital, fiscal expenditure, and information infrastructure all support and positively moderate the energy-saving and carbon-reduction effect of APS. Fourth, the impact of externalities of APS on CEE varies, both the Marshall–Arrow–Romer (MAR) and Porter externalities having a U-shaped relationship with the CEE of neighboring areas but Jacobs externalities having no significant influence on the CEE of the surrounding areas. The findings of this study indicate that increasing the scale of APS in urban agglomeration, promoting the diversification and division of labor and the cooperation of industries across areas, and promoting the process of city–industry integration are important for achieving the goal of carbon peaking and carbon neutrality in the YRD region. Full article

The continued increase in global trade protectionism, refinement of labor division, high innovation cost, and development of information technology have led to many enterprises actively being engaged in innovation to improve their national economic competitiveness. Although significant research has been carried out on this by numerous academic institutions, little is known about innovation trends in Chinese enterprises. In the existing methods of literature research, the scientific knowledge map, which, based on bibliometrics, is an effective tool for management knowledge, can visually describe the knowledge resources and their carriers under the state of time series and provides a new way for literature analysis. In this paper, the CiteSpace tool was used to map knowledge domains. A total of 459 and 5645 studies published between 2010 and 2020 were downloaded from the CNKI and Web of Science databases. By analyzing the keywords “co-occurrence matrix”, “author cooperation networks”, and “high-frequency cited literatures”, we found the differences of the research current, hotspots, and trends both in China and the world, but we were not limited to these. The research results are as follows: In China: (1) There were 759 nodes in the map of key authors, which shows that innovation chain research in China is still in the early stages. In addition, the layout of author nodes was relatively scattered while density was low; therefore, it was hard to form clusters. There is a need to strengthen academic cooperation to improve research on innovation chains. (2) From the keyword network analysis map of the innovation chain, we found that the Chinese research hotspots were: innovation chain, industrial chain, collaborative innovation, scientific and technological innovation, innovation-driven, technological innovation, strategic emerging industries, innovation ecosystem, and integration of industry and education, among other fields. In the world: (1) Most academic studies on the innovation chain have been published in different fields; these journals are about production, operation, management science, and economy, among others. These findings show that the innovation chain has received attention from multiple disciplines, and, therefore, it belongs to an interdisciplinary research field. Studies from different fields have analyzed the innovation chain from their own research perspectives. Therefore, current research outcomes on the innovation chain are difficult to unify. (2) The most important authors and key studies were analyzed. According to the co-citation map, studies on the “innovation chain” with high co-citation frequencies were not studies on the innovation chain but had the innovation chain as a theme or a concept without in-depth research on the innovation chain. (3) Through co-citation and cluster analysis of keywords, we found that international studies on the “innovation chain” are more focused on the global value chain, blockchain technology, strategic analysis, sustainable development, and absorptive capacity among other fields. Research frontier themes were mainly communication technology, continuous operation management, technological change, ecological innovation, supply chain integration, Industry 4.0, logistics innovation, nanotechnology, circular economy, and supply chain innovation, among other fields. Therefore, international scholars focus more on: technological issues related to innovation, using advanced communication technology, blockchain technology, and nanotechnology to improve innovation abilities. Moreover, they insist on sustainable development in the process of innovation, advocating for green innovation and ecological innovation. Finally, results of the visualization show that current research is mainly focused on innovation, not the innovation chain. Therefore, experts in this field should pay more attention to the study of structural stability and knowledge mobility of the innovation chain. Full article

Multicellular cooperation in actinomycetes is a division of labor-based beneficial trait where phenotypically specialized clonal subpopulations, or genetically distinct lineages, perform complementary tasks. The division of labor improves the access to nutrients and optimizes reproductive and vegetative tasks while reducing the costly production of secondary metabolites and/or of secreted enzymes. In this study, we took advantage of the possibility to isolate genetically distinct lineages deriving from the division of labor, for the isolation of heterogeneous teicoplanin producer phenotypes from Actinoplanes teichomyceticus ATCC 31121. In order to efficiently separate phenotypes and associated genomes, we produced and regenerated protoplasts. This approach turned out to be a rapid and effective strain improvement method, as it allowed the identification of those phenotypes in the population that produced higher teicoplanin amounts. Interestingly, a heterogeneous teicoplanin complex productivity pattern was also identified among the clones. This study suggests that strain improvement and strain maintenance should be integrated with the use of protoplasts as a strategy to unravel the hidden industrial potential of vegetative mycelium. Full article

To ease the fluctuation of hog prices and maintain the hog market’s stability, the central government of China has issued a series of hog price control policies. This paper, supplemented by co-word analysis and LDA thematic modeling, constructed 9 first-level indicators and 36 second-level indicators and used a PMC index model to conduct quantitative research on the selected 74 policies and regulations of China’s pig price regulation policies from July 2007 to April 2020. The research concludes that the research tool system of China’s hog price control is formed. The overall design of the hog price control policy is relatively reasonable, but there are still the following problems: the subject of China’s pig price control policy is singular, so it is difficult to form a resultant force; the policy pays attention to the price regulation in the short term, but ignores the long-term industrial structure adjustment; it emphasizes market supervision, but insufficient support for slaughtering and processing; it focuses on production and management to improve the development quality and efficiency of the pig industry, but does not take social equity into account. Finally, some policy suggestions are put forward: multi-department division of labor and close cooperation; adjusting the industrial structure of hog and carrying out appropriate large-scale breeding; establishing the operation mode of slaughtering and processing in the producing area to reduce the circulation cost of the pig industry; ensuring the consumption of pork by low-income groups and giving consideration to social efficiency and equity. Full article