Table 2 Correlation table of outcome and main explanatory variables

1

Product innovation

1

2

Process innovation

0.333***

1

3

Patents

0.408***

0.245***

1

4

Sales of improved products

0.538***

0.239***

0.296***

1

5

Sales of new products

0.524***

0.188***

0.244***

0.358***

1

6

Training Firm (TF)

0.072**

0.076***

0.102***

0.029

-0.018

1

7

Innovation in the firm’s business processes (IBP)

0.189***

0.350***

0.152***

0.160***

0.121***

0.069**

1

8

Innovation in the firm’s organization of work (IOW)

0.170***

0.260***

0.065**

0.141***

0.115***

0.062**

0.485***

1

9

Innovation in the firm’s external relations (IER)

0.155***

0.166***

0.082***

0.129***

0.086***

-0.016

0.3667***

0.329***