From: Effects of research tool patents on biotechnology innovation in a developing country: A case study of South Korea
Evaluating effects
Coeff.
Std. err.
P > z
Difficulty
0.121
0.189
0.521
Size
0.188
0.475
0.693
Age**
0.014
0.006
0.031
Number of obs.
76
Log likelihood
--90.164
LR chi2(3)
6.75
Prob > chi2
0.080