Table 3.

Regression analysis of innovation capabilities models

VariablesCoeff.Std. err.CoeffStd. err.Only upstream firmsOnly downstream firmsBoth upstream and downstream firms
Model IModel IIModel IIIModel IVModel V
Coeff.Std. err.Coeff.Std. err.Coeff.Std. err.Coeff.Std. err.Coeff.Std. err.
DC    0.247**0.0740.218**0.0740.238***0.0530.234***0.0520.213***,054
OC    0.0140.0.0710.0020.0820.0330.0530.0120.0530.025,054
MC    0.322***0.0.0780.265***0.0720.309***0.0530.295***0.0530.274***,054
TC    0.333***0.0740.265**0.0740.306***0.520.302***0.0520.275***,054
Chain position  0.319***0.122      0.240*0.1070.199*0.108
Size0.343***0.071          0.166*,067
Constant−0.5380.131−0.1180.083−0.0820.0740.162*0.0780.0260.052−0.0860.072−0.3390.129
No of obs.256 256 140 123 263 263 254 
R²0.084 0.026 0.279 0.215 0.257 0.272 0.285 
Adjusted R²0.081 0.022 0.258 0.189 0.246 0.258 0.268 

Notes:

* Two-tailed test: p < 0.05;

** Two-tailed test: p < 0.01;

*** Two-tailed test: p < 0.001

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