Government support plays a crucial role in enhancing regional innovation capabilities and creating distinctive innovation clusters. Using the innovation competitiveness indicators of the 31 provinces in China, this paper examines the provincial government collaboration and innovation competitiveness values through Super‐SBM data envelopment analysis and analytic hierarchy process. Then, the particle swarm optimization (PSO) algorithm is employed to relate government collaboration to innovation competition and cooperation among provinces in hope of exploring the developmental trends of innovation cluster optimization. Research findings show that only 25.8% of the provincial government support proves effective for regional innovation, and the competitiveness values of the provinces are generally low and need to be improved. By incorporating the role of government support into the innovation competition and cooperation among provinces, there has been a tendency of innovation activities clustering in innovative regions and three major clusters have formed. The trend of clustering will continue to evolve outwards so that the overall innovation level of China would be enhanced.

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Abstract:Real estate development is critical to healthy economic growth and regional development. Using real-estate data in Guangzhou, China from the 1970s to 2015, we examined the spatiotemporal agglomeration and evolution of Guangzhou's real estate industry with spatial and spatiotemporal techniques. This study shows that real estate businesses were initially agglomerated in the city center with socioeconomic advantages, and later spread into suburbs as new growth foundations. We also found that different business types, depending on their functions, evolved and agglomerated in different time periods. The findings provide valuable support to the formulation of effective government policy and the management of real estate enterprises in China.

The complexity of urban congestion requires policy-makers to adopt different congestion control measures that suit the characteristics of the city at the proper time. The paper focuses on the most controversial congestion pricing and offers methods to judge the efficacy of the policy by game theoretic approaches. It is found that congestion pricing is not merely a Pigouvian tax that internalizes drivers’ externalities, but also a powerful means to enhance public traffic proportion and balance road utilization on the premise of maximized social util-ity. Meanwhile, the embedded multiple case study shows that theoretical correctness of the policy is a necessary, but not sufficient condition for its effectiveness because the valid operation of the policy further requires cities to hold certain attributes in some aspects, such as econom-ic level, population density, proper pricing mechanism, and the ability to limit access to and from certain areas. Moreover, the authority should pay attention to matching the policy goal and its functions for successful implementation.

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The rapid development of the Internet had a profound influence on the spatial distribution of economic output activities. On the basis of theoretical analysis, this study takes China's regions as research samples and construct a spatial econometric model to empirically analyze the impact of Internet development on regional productivity. The analysis reveals that the distribution of regional productivity in China had significant spatial correlation; regional productivity had positive spatial externalities; Internet development had significant promotion effects and positive spatial spillover effects to regional productivity, but the effects are heterogeneous in different subregions. The subregion analysis shows that the optimization effect of the Internet on regional productivity exhibits heterogeneity in different subregions. The threshold effect analysis reveals the increasing marginal effect of Internet development on regional productivity, and economic development and human capital supply are important factors restricting this marginal effect. Altogether, this study provides useful references on the positive effects of the Internet on regional productivity in the spatial dimension, and suggests that the policy makers can optimize the spatial distribution of regional productivity by promoting Internet access in various regions and narrowing the digital divide among regions.