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Table 5 GLS regression results—net profit

From: How does the position of firms in the supply chain affect their performance? An empirical study

 

Standardized estimate—dependent variable: NP

 

Model 1 (Base Model 1)

Model 2

Model 3

Model 4

Model 5

Model 6

Model 7

Model 8 (Base Model 2)

Intercept

− 0.009

− 0.0043

− 0.811

− 0.043

− 0.079

− 0.084

− 0.085

1.002**

Independent variables

        

SNTL1

 

− 0.213*

 

− 0.213*

− 0.224*

− 0.205*

− 0.210**

− 0.205*

SNTL2

  

− 0.112*

     

SNC

 

0.708***

0.655*

0.709**

   

0.802*

(SNC)2

   

− 0.907

    

ST

    

0.721***

 

0.088

0.434

SSH

    

0.065

  

0.031

BT

     

0.541*

0.551*

0.505

BSH

     

0.178

 

0.170

ST × BT

      

− 0.082

 

Control variables

        

AGE

0.054

0.097

0.008

0.097

0.094

0.078

0.078

0.077

SIZE

 

0.328

0.277

0.159*

0.100*

0.309*

0.441*

0.274*

PUB

− 0.285

0.182

0.054

0.181

0.033

0.293

0.294

0.322

JAP

0.410

− 0.118

0.718

− 0.118

− 0.101

− 0.104

− 0.105

− 0.100

DL

0.0039

0.001

0.123

0.082

0.091

0.003

0.012

0.003

R2

0.02

0.59

0.40

0.54

0.53

0.56

0.56

0.61

Adjusted R2

0.01

0.55

0.37

0.51

0.52

0.55

0.55

0.55

F

0.2

15.30

12.47

9.53

14

15.99

13.48

10.05

p value

0.9

1.002e−10

1.061e−10

1.023e−09

4.7833e−10

4.531e−11

1.94e−10

1.506e−10

Improvement over base R2

 

0.57

0.38

0.52

0.51

0.54

0.54

0.59

Max VIF

1.02

1.36

1.56

24.59

1.58

9.98

16.12

84.62

  1. p < 0.10; *p < 0.05; **p < 0.01; ***p < 0.001