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. 2022 Aug 24;10:942243. doi: 10.3389/fpubh.2022.942243

Table 11.

IV estimations.

(1) (2)
DFI*Post13 PM 2.5
IV*Post13 0.3910***
(0.1192)
DFI*Post13 −0.5127***
(0.1638)
First-stage F value 10.7570
Cragg-Donald Wald F statistic 72.0772
Kleibergen-Paap rk LM statistic 3.5614
P-value 0.0591
Baseline controls Yes Yes
City FE Yes Yes
Year FE Yes Yes
Province-by-year FE Yes Yes
N 1921 1921
***

represent the significant levels of 1%. Parentheses indicate standard errors clustered at the city level. The baseline control variables are consistent with column (4) in Table 2.