Table 4 Baseline regression results.
(1) | (2) | (3) | |
|---|---|---|---|
VARIABLES | lnCitepatent | lnCitepatent | lnCitepatent |
DT_txt | 0.257*** | 0.230*** | |
(0.0373) | (0.0371) | ||
lnage | −0.141*** | −0.142*** | |
(0.0140) | (0.0140) | ||
soe | 0.00339 | 0.00551 | |
(0.00973) | (0.00972) | ||
lnsize | 0.0574*** | 0.0556*** | |
(0.00440) | (0.00440) | ||
lnboard | 0.152*** | 0.151*** | |
(0.0295) | (0.0295) | ||
indp | 0.0402 | 0.0344 | |
(0.0898) | (0.0897) | ||
top10 | −0.0320 | −0.0242 | |
(0.0289) | (0.0289) | ||
Lev | −0.0865*** | −0.0779** | |
(0.0319) | (0.0319) | ||
liquid | 0.00183 | 0.00232 | |
(0.00203) | (0.00203) | ||
ROA | 0.634*** | 0.634*** | |
(0.0751) | (0.0750) | ||
Constant | 0.430*** | −0.747*** | −0.728*** |
(0.00450) | (0.121) | (0.121) | |
Observations | 22,200 | 22,200 | 22,200 |
R-squared | 0.241 | 0.256 | 0.257 |