“…And for all regressions, the robust standard errors are clustered at the city level to relieve the potential spatial and serial correlation (Cameron et al., 2011). X itγ signifies the linear component controls for the essential confounding factors, referring to existing studies (Essandoh et al., 2020; Gu et al., 2021; Khan & Ozturk, 2021; Lv & Li, 2021; Nassani et al., 2021; Wang et al., 2021; Wu, 2022; Wu et al., 2022; Wu & Wang, 2022). It includes the GDP per capita GDPP , the proportion of nonagricultural output (IND) , the annual average population (POP), the proportion of urban resident (URBAN), proportion of tertiary industry employment (EMP), the summation of deposits and loans (BANK), the volume of fiscal revenue and expenditure (FIS), the number of patents authorized (R&D), the ratio of total export‐import volume to GDP (OPEN), and the total investment in fixed assets to GDP (INVEST).…”