Table 10 Test results for firm level analysis.

From: Can international railway express improve green total factor productivity?

 

GTFP

(1)

(2)

Treat×post

1.0038*** (0.2034)

0.4341** (0.2118)

Control variables

NO

YES

Industry fixed effect

YES

YES

City fixed effect

YES

YES

Year fixed effect

YES

YES

Observations

15734

15734

R2

0.806

0.777

  1. The values in parentheses are t-values, *, **, *** represent significance levels of 10%, 5%, and 1% respectively.
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