Table 4 Results of instrumental variable estimation.
From: Does China’s innovation-driven policy affect enterprises’ import performance of intermediate goods?
Variable | Import quantity of intermediate goods | Import variety of intermediate goods | Import quality of intermediate goods |
---|---|---|---|
\({T}_{{it}}\) | 0.6213*** (0.0178) | 0.0362*** (0.0105) | 0.3784*** (0.0095) |
Control variable | Yes | Yes | Yes |
Firm fixed effect | Yes | Yes | Yes |
Year fixed effect | Yes | Yes | Yes |
N | 51784 | 42652 | 51432 |
R2 | 0.1140 | 0.0090 | 0.1090 |
Estimation results for the first stage | |||
Instrumental variable | 0.996*** (0.0048) | 0.0464*** (0.0058) | 0.2662*** (0.0020) |
Control variable | Yes | Yes | Yes |
Kleibergen‒Paap rk LM statistic | 181.533*** | 189.623*** | 186.184*** |
Cragg–Donald Wald F statistic | 660.555 | 568.167 | 784.305 |