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Green innovation (GI) can enable win‒win style economic and ecological benefits. Using China's pilot scheme for the construction of the intellectual property protection (IPP) system as an example, this paper empirically tests the impact of IPP system reform on the GI level and its spatial spillover effect. The results show that IPP system reform has significantly promoted urban GI, indicating that a progressive reform model characterized by experimentalist governance is applicable to innovation policy practices in developing countries. The dynamic effect analysis shows that IPP system reform can be applied to continuously promote urban GI. The mechanism analysis shows that such use of IPP system reform can improve the level of urban GI by promoting investment and talent agglomeration, confirming the viewpoint of the institutionalist school. The heterogeneity analysis shows that IPP system reform plays a stronger role in promoting GI in peripheral cities than in central cities, in cities with lower rather than higher scientific and educational levels and in cities with weaker rather than stronger GI capacity. Consistent with the theory of institutional diffusion, IPP system reform has a significant spatial spillover effect, promoting GI activities in surrounding cities while working to improve the local GI level. This paper affirms the effectiveness of the pilot regional innovation policy with Chinese characteristics, with important theoretical significance. [ABSTRACT FROM AUTHOR]

It is of great significance to explore the causality between regional integration (RI) and PM2.5 pollution within urban agglomerations in the current pursuit of ecological civilization construction and high‐quality development. Using panel data of 285 prefecture‐level cities in China from 2003 to 2016, this study considers the expansion of the city economic coordination committee in Yangtze River Delta (YRDECC) as a quasi‐natural experiment of RI, and use a difference‐in difference method to explore the effect and inner mechanisms of RI on PM2.5 concentration. After a descriptive analysis of the spatial‐temporal variation trend of the PM2.5 concentration in the Yangtze River Delta urban agglomeration, the empirical results show that RI helps to alleviate 4.8% of the PM2.5 concentration overall. For the original cities, the reduction effect on the PM2.5 concentration is 5.2%, for the new cities, however, RI exacerbates 2.1% of the local PM2.5 concentration. A series of robustness tests confirm the validity of the baseline results, and further indicate that the effect of RI remains significant in the long term and starts to increase from the third year. Furthermore, the reduction effect of RI on PM2.5 concentration is more pronounced in cities with larger scales, more developed economies, and higher degrees of marketization. The mechanism analysis shows that industrial transfer, population migration and technological innovation are significant channels of RI that affect PM2.5 concentrations. The conclusions of this paper provide a new path to alleviate PM2.5 pollution and achieve ecological conservation and high‐quality development in the city cluster area. [ABSTRACT FROM AUTHOR]

In the opening decades of the twenty‐first century certain cities around the world emerged as hubs of entrepreneurial innovation. This paper explores this urban economic change phenomenon through in‐depth and comparative qualitative analysis. It focuses on the recent contemporary history of New York, Los Angeles, London, Berlin, Tokyo and Shanghai prior to the global COVID pandemic. Based on an analysis of the drivers, mechanisms and processes of change, it is found that these cities acted as places of possibility for many individuals who previously may have been unlikely to engage in entrepreneurship. The cities were found to have established new development paths through entrepreneurial innovation stemming from co‐creation network dynamics, with key human agents playing pivotal roles. Common elements include the rise of venture capital, the growth of entrepreneurial cultures, and institutional policy changes. Notably, entrepreneurial innovation was found to be closely tied to changes in large corporates. This innovation evolved through the proliferation of new infrastructure such as co‐working spaces and innovation incubators, with each city being utilised as a test‐bed for new ideas. Finally, the emergence of a darker side to entrepreneurial innovation is found in terms of growing urban inequality. [ABSTRACT FROM AUTHOR]