Table 2.

Dependent variable regressions

Sales successModel 1.
Product innovation
Model 2.
Radical innovation
Model 3.
Incremental innovation
Model 4.
Patents
Model 5.
Mediator effect
Coef.Std. err.zP > |z|Coef.Std. err.zP > |z|Coef.Std. err.zP > |z|Coef.Std. err.zP > |z|Coef.Std. err.zP > |z|
Product innovation0.350.152.210.02––––––––––––––––
Radical innovation––––0.040.190.210.83––––––––––––
Incremental innovation––––––––0.560.202.740.0––––––––
Patents–––––––––––-–−0.670.16−4.20.0––––
Mediator effect––––––––––––––––−0.620.21−2.950.00
Internal R&D expenditure6.57 × 10−91.19 × 10−80.550.581.18 × 10−81.58 × 10−80.750.455.52 × 10−91.10 × 10−80.500.611.07 × 10−72.53 × 10−84.230.01.02 × 10−73.34 × 10−83.070.00
External R&D expenditure4.60 × 10−85.86 × 10−80.780.435.93 × 10−86.03 × 10−80.980.325.44 × 10−85.80 × 10−80.940.345.36 × 10−86.87 × 10−80.780.44.10 × 10−86.41 × 10−80.640.52
Constant−0.0450.05−0.90.37−0.0130.49−0.260.79−0.040.049−0.860.380.010.0480.240.80.0290.0480.600.54
Number of obs1,7461,7461,7461,712
LR chi2(3)8.393.5211.1937.5417.91
Prob > chi20.03850.31860.01070.00000.0005
Pseudo R20.00350.00150.00460.01550.0075
Source: Own elaboration

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