Research Article
Research on Regional High-Tech Innovation Efficiency and Influence Factors: Evidence from Yangtze River Economic Belt in China
Figure 4
Efficiency of the high-tech industry in the technological marketization stage (2009–2018). (a) Stage2 of Yangtze River Delta. (b) Stage2 of the Middle Region. (c) Stage2 of the Western Region. Source: calculated by National Bureau of Statistics of China (NBSC), Statistical Yearbook of China’s High Technology Industry, Beijing: China Statistics Press, 2009–2019.
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