Qualitative Improvement of data	Model 2-1	Model 2-2	Model 2-3	Model 2-4
Net sales	0.000	0.000*	0.000	0.000**
Net sales	(0.000)	(0.000)	(0.000)	(0.000)
R&D expenses	0.000	0.000*	0.000	0.000**
R&D expenses	(0.000)	(0.000)	(0.000)	(0.000)
Listed dummy	−0.187**	−0.062	0.000	−0.010
Listed dummy	(0.075)	(0.054)	(0.058)	(0.052)
Manufacturing industry dummy	−0.326***	−0.133**	−0.195***	−0.130**
Manufacturing industry dummy	(0.088)	(0.064)	(0.067)	(0.061)
Number of patents held	0.069*	0.055*	0.019	0.035
Number of patents held	(0.039)	(0.028)	(0.030)	(0.027)
Person in charge dummy	0.428***	0.084	0.074	0.019
Person in charge dummy	(0.071)	(0.054)	(0.058)	(0.052)
Presence of data acquisition project	0.504***	0.002	0.075	−0.051
Presence of data acquisition project	(0.101)	(0.077)	(0.081)	(0.073)
System deployment		0.751***		0.516***
System deployment		(0.036)		(0.048)
Acquisition of skills and knowledge			0.607***	0.296**
Acquisition of skills and knowledge			(0.034)	(0.042)
Observations	487
Adjusted R²	0.245	0.237	0.222	0.272
p < 0.1, p < 0.05, **p < 0.01
Values in parentheses: SE
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