Table 8. Robust test on subgroups of low and high zombie congestion industry

Dependent variables	Log odd ratio of the probability of patent application		Log odd ratio of the probability of commercialization
Subgroup	Lower congestion	Higher congestion	Lower congestion	Higher congestion
β1 Zombie statusi	0.652* (0.40)	0.281 (0.33)	–0.082 (0.35)	–0.261 (0.29)
β3 Government fundi	0.066*** (0.03)	0.063*** (0.03)	0.001 (0.01)	–0.014 (0.01)
β4 Project durationi	0.072 (0.13)	0.187 (0.13)	0.222** (0.10)	0.177* (0.10)
β5 Partnersi	0.215* (0.12)	0.121 (0.08)	0.020 (0.11)	0.168** (0.07)
β6 Technological readiness level	-	-	0.199*** (0.07)	0.204*** (0.06)
Constant	–0.909** (0.46)	–0.925** (0.39)	–2.313*** (0.65)	–1.549*** (0.53)
Observations	331	436	313	409
Tech. field fixed	Yes	Yes	Yes	Yes
Log likelihood	–183.405	–229.244	–197.930	–244.346

are statistical significance at 1%,
5%,
10%, respectively; standard errors are also reported in parentheses.