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. 2023 Jan 25;9(2):e12925. doi: 10.1016/j.heliyon.2023.e12925

Table 6.

The effect of implementing NTU after matching.

PM2.5 Models
(A) (B) (C) (D)
event×time 0.059*** (0.021) −0.084*** (0.025) −0.698*** (0.023) −0.055** (0.024)
InduStru 0.038*** (0.005) −0.041 (0.026)
Econ −0.394*** (0.077) −0.252*** (0.068)
Sci −0.030*** (0.007) −0.034*** (0.011)
Edu −0.086*** (0.023) −0.083*** (0.024)
Invest −0.004 (0.007) −0.010 (0.007)
Temp 0.140*** (0.037) −0.083** (0.033)
Wind −0.014 (0.008) −0.004 (0.007)
Hum −0.013 (0.030) 0.035 (0.028)
city fixed effects YES YES YES YES
year fixed effects NO YES NO YES
N 2612 2612 2612 2612
R2 0.002 0.236 0.282 0.327

***p < 0.01, **p < 0.05, *p < 0.1.