Abstract
ABSTRACT In this paper, a new index is constructed to measure the regional distribution of high-tech industries. Based on the product space theory and the fitness method, we creatively construct the urban high-tech complexity index, which reflects the diversity and universality of urban high-tech industries. Using urban data from Chinese industrial enterprise database, we find the difference in China’s urban high-tech complexity between cities shows a downward trend from 1996 to 2013, and the strong positive spatial correlation of this index. These conclusions reflect the diffusion and spillover effects of China’s high-tech industries across regions. Our paper is helpful to understand the innovation drivers at the city level, and promotes the synergy and spillover of high-tech industries.
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