Table 6 Robustness test results for adjustment the sample size and higher dimensional fixed effect.
From: The impact of digital technology on total factor productivity in manufacturing enterprises
(1) TFP | (2) TFP | (3) TFP | |
|---|---|---|---|
Dig | 0.025*** (3.298) | 0.024*** (2.973) | 0.049*** (5.635) |
Cons | − 0.963 (− 1.356) | − 2.290*** (− 5.058) | − 2.906*** (− 14.119) |
Controls | Yes | Yes | Yes |
Ind FE | Yes | Yes | Yes |
Pro FE | Yes | Yes | Yes |
Year FE | Yes | Yes | Yes |
Ind-Year FE | No | No | Yes |
Pro-Year FE | No | No | Yes |
N | 13,005 | 12,425 | 15,222 |
R2 | 0.314 | 0.258 | 0.550 |
