Skip to main content
Journal of Innovation and Entrepreneurship

A Systems View Across Time and Space

Table 6 Standard ordered probit versus ordered probit with selection

From: Innovation and service outsourcing: an empirical analysis based on data from Tunisian firms

Variables

Standard ordered probit (M1)

Ordered probit with selection (M2)

red_cout

qua_ser

flex_pro

red_cout

qua_ser

flex_pro

Coef.

RSE

Coef.

RSE

Coef.

RSE

Coef.

RSE

Coef.

RSE

Coef.

RSE

Outsourcing (exter)

2.884***

(0.609)

2.306***

(0.495)

1.943***

(0.494)

2.936***

(0.693)

1.998***

(0.466)

1.469***

(0.519)

Interaction with clients (intclt)

−0.037

(0.294)

0.618**

(0.313)

0.226

(0.252)

0.527 **

(0.245)

0.968 ***

(0.308)

0.643 **

(0.258)

Use of ICTs (tic)

−0.138

(0.178)

−0.868***

(0.313)

−0.218

(0.171)

−0.548

(0.358)

−0.555

(0.390)

−0.677 **

(0.296)

Internet business (inter)

−0.011

(0.580)

0.407

(0.535)

−0.204

(0.606)

0.217

(0.541)

0.641

(0.541)

0.119

(0.564)

National cooperation (cooperNat)

0.078

(0.355)

0.186

(0.353)

−0.406

(0.381)

−0.390

(0.274)

−0.011

(0.326)

−0.749 **

(0.356)

Age of the firm (age)

0.018

(0.022)

0.004

(0.013)

0.011

(0.013)

0.035 *

(0.019)

0.012

(0.010)

0.015

(0.012)

Concentration (concen)

0.834**

(0.399)

0.769*

(0.435)

1.594***

(0.479)

0.969 **

(0.447)

0.593

(0.430)

1.510 ***

(0.508)

Outsourcing (exter)

      

1.370 **

(0.625)

1.390 **

(0.673)

1.322 **

(0.627)

Interaction with clients (intclt)

      

0.221

(0.309)

0.318

(0.300)

0.174

(0.280)

Use of ICTs (tic)

      

0.657 **

(0.264)

0.842 ***

(0.312)

0.615**

(0.259)

Internet business (inter)

      

0.321

(0.607)

0.597

(0.570)

0.058

(0.484)

Extramural R&D (rd_ex)

      

1.575 ***

(0.572)

1.123 *

(0.640)

1.117 **

(0.544)

Qualification (Qual)

      

1.667 **

(0.777)

1.890 **

(0.741)

2.238 ***

(0.823)

c1

1.347

(0.969)

1.243

(0.928)

0.322

(1.029)

1.627 *

(0.900)

1.426

(0.906)

0.268

(0.998)

c2

2.176***

(0.770)

1.912**

(0.829)

0.658

(1.019)

2.775 ***

(0.746)

2.256 ***

(0.810)

0.688

(0.997)

c3

2.540***

(0.789)

1.988**

(0.827)

1.413

(1.014)

3.258 ***

(0.781)

2.340 ***

(0.810)

1.460

(1.020)

c4

2.963***

(0.805)

2.493***

(0.861)

1.918**

(0.976)

3.656 ***

(0.782)

2.894 ***

(0.835)

1.962 **

(0.954)

c5

3.441***

(0.805)

3.073***

(0.915)

2.654***

(0.975)

3.966 ***

(0.807)

3.513 ***

(0.899)

2.595 ***

(0.995)

Athrho

      

1.853 **

(0.824)

1.284 ***

(0.362)

1.085 ***

(0.374)

Number of observations

104

 

104

 

104

 

100

 

100

 

100

 

Log-likelihood

−21,319.648

 

−15,958.174

 

−22,695.161

 

−18,926.947

 

−17,940.517

 

−20,928.864

 

Pseudo R 2

0.1431

 

0.2343

 

0.1161

 

0.107

 

0.042

 

0.081

 
  1. The values between parentheses are the robust standard error corrected by the White method
  2. Significance level: *10 %; **5 %; ***1 %
Back to article page