Research on Regional High-Tech Innovation Efficiency and Influence Factors: Evidence from Yangtze River Economic Belt in China

Figure 3

Efficiency of the high-tech industry in the technological innovation stage (2009–2018). (a) Stage1 of Yangtze River Delta. (b) Stage1 of the Middle Region. (c) Stage1 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.

(a)

(b)

(c)