Table 4 Regression result.
Baseline regression | |||||||||
---|---|---|---|---|---|---|---|---|---|
(1) | (2) | (3) | |||||||
Variables | lndigital | lninvention | lnutility | ||||||
DIF | 0.554*** | 0.498*** | 0.353*** | ||||||
(10.12) | (10.46) | (8.19) | |||||||
size | 0.054*** | 0.049*** | 0.016* | ||||||
(4.80) | (5.01) | (1.78) | |||||||
age | −0.113*** | −0.071*** | 0.011 | ||||||
(−6.20) | (−4.47) | (0.74) | |||||||
roe | 1.336*** | 1.161*** | 0.844*** | ||||||
(11.74) | (11.72) | (9.41) | |||||||
lev | 0.737*** | 0.643*** | 0.458*** | ||||||
(11.47) | (11.49) | (9.04) | |||||||
dual | −0.040 | −0.022 | 0.022 | ||||||
(−1.63) | (−1.02) | (1.14) | |||||||
opion | 0.356*** | 0.318*** | 0.214*** | ||||||
(4.87) | (5.00) | (3.71) | |||||||
soe | 0.241*** | 0.246*** | 0.030 | ||||||
(8.21) | (9.62) | (1.30) | |||||||
board | 0.545*** | 0.527*** | 0.172*** | ||||||
(6.65) | (7.38) | (2.66) | |||||||
indep | 1.194*** | 1.263*** | 0.409** | ||||||
(4.81) | (5.85) | (2.09) | |||||||
top1 | −0.094 | −0.057 | −0.212*** | ||||||
(−1.16) | (−0.81) | (−3.31) | |||||||
Constant | −3.193*** | −3.207*** | −1.283*** | ||||||
(−10.96) | (−12.65) | (−5.58) | |||||||
Year/Industry | Yes | Yes | Yes | ||||||
r2_a | 0.337 | 0.299 | 0.241 | ||||||
Observations | 11,401 | 11,401 | 11,401 | ||||||
Dimension regression | |||||||||
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | |
VARIABLES | lndigital | lninvention | lnutility | lndigital | lninvention | lnutility | lndigital | lninvention | lnutility |
Breadth | 0.459*** | 0.411*** | 0.317*** | ||||||
(11.07) | (11.37) | (9.69) | |||||||
Depth | 0.288*** | 0.279*** | 0.141*** | ||||||
(5.88) | (6.54) | (3.65) | |||||||
DigI | 0.138** | 0.083 | 0.008 | ||||||
(2.00) | (1.39) | (0.16) | |||||||
Constant | −3.153*** | −3.169*** | −1.279*** | −2.996*** | −3.048*** | −1.119*** | −2.798*** | −2.833*** | −0.995*** |
(−10.88) | (−12.56) | (−5.59) | (−10.26) | (−12.00) | (−4.86) | (−9.63) | (−11.20) | (−4.35) | |
Controls | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Year/Industry | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
r2_a | 0.338 | 0.300 | 0.243 | 0.333 | 0.295 | 0.237 | 0.331 | 0.292 | 0.237 |
Observations | 11,401 | 11,401 | 11,401 | 11,401 | 11,401 | 11,401 | 11,401 | 11,401 | 11,401 |