Table 4 Stage 1: Regression models (logit) Independent variable: linkages

Elementary

−0.387

−0.378

−0.352

−1.52

−1.46

−1.39

University

−0.019

−0.07

Training

0.168

(4.17)***

ln_training

0.737

0.735

0.755

(5.32)***

(5.42)***

(5.39)***

Product-system

0.813

0.751

0.674

0.768

(3.32)***

(3.01)***

(2.81)***

(3.08)***

Farmers’ associations

0.623

0.572

0.51

0.626

(2.49)**

(2.25)**

(2.10)**

(2.47)**

Age

0.122

0.135

−0.011

0.127

(2.06)**

(2.24)**

−1.1

(2.13)**

sqr_age

−0.001

−0.001

−0.001

(2.27)**

(2.42)**

(2.40)**

Size

−0.001

−0.001

−0.001

−0.59

−0.68

−0.52

Crop1

−0.378

−0.356

−0.358

−1.31

−1.22

−1.23

Crop2

0.018

0.035

0.032

−0.05

−0.09

−0.08

South

−0.921

−1.034

−0.693

−1.051

(2.11)**

(2.33)**

(1.78)*

(2.38)**

West_centre

−1.364

−1.417

−1.228

−1.383

(4.32)***

(4.41)***

(4.07)***

(4.31)***

Centre

−1.666

−1.713

−1.32

−1.723

(4.23)***

(4.26)***

(3.75)***

(4.28)***

Temporal

0.44

0.443

0.441

−1.48

−1.46

−1.46

Constant

−2.438

−2.915

0.354

−2.792

−1.62

(1.91)*

−0.64

(1.83)*

Observations

412

412

412

412

LR Chi²(8)

96.41

105.03

92.97

102.91

Pseudo R²

0.1689

0.184

0.1629

0.1803