Research on the Influence Mechanism of the Across-Industrial-Chain Investment Speed on Innovation Performance of AI Enterprises: Improvement Path of Artificial Intelligence Technology Application

Table 6

Fixed effect analysis results of panel data.

	(1)	(2)	(3)
Lnts	0.011	0.020	0.006
	(0.001)	(0.001)	(0.001)
Rdratechain	1.119	2.022	0.959
	(0.302)	(0.228)	(0.245)
Chainnumber	0.022	0.009	0.008
	(0.001)	(0.001)	(0.001)
Age	−0.006	−0.009	−0.006
	(0.011)	(0.008)	(0.007)
Roa	−2.88 − E − 05	2.57E − 05	−2.65 − E − 05
	(1.92E − 04)	(1.44E − 04)	(1.34E − 04)
Owner	−0.030	−0.018	−0.018
	(0.030)	(0.023)	(0.021)
Indgrow	6.62E − 05	4.17E − 04	0.001
	(4.05E − 04)	(3.04E − 04)	(2.82E − 04)
Lnsize	−0.017	−0.015	−0.012
	(0.009)	(0.007)	(0.006)
Lngdp	0.117	0.134	0.111
	(0.110)	(0.082)	(0.076)
Year	Control	Control	Control
Industry	Control	Control	Control
Speed		0.959	−0.125
		(0.018)	(0.098)
SpeedLnts			0.109
			(0.004)
SpeedRdratechain			3.974
			(0.818)
Obs#	6363	6352	6352
Firms	1586	1586	1586
R^2	0.074	0.414	0.496
F	31.87	258.57	311.29

Note.; ; .