Table 3. Classification of China’s interprovincial digital economy development level clubs in 2019.

Highly developed areas	Beijing、Guangdong、Shanghai、Jiangsu、Zhejiang
Moderately developed areas	Fujian、Shandong、Hainan、Tianjin、Chongqing、Sichuan
Low developed areas	Shanxi (western)、Hebei、Liaoning、Anhui、Hubei、Henan、Mongolia、Ningxia、Qinghai
Underdeveloped areas	Jilin、Shanxi (Central)、Jiangxi、Heilongjiang、Hunan、Guangxi、Guizhou、Gansu、Xinjiang、Yunnan