Skip to main content

Table 7 Modelling rice production an d production change over time

From: Drivers of rice production: evidence from five Sub-Saharan African countries

Variable groups

Variables

Production models

Production change model

Model 1

Model 2

Model 3

Period 1 (p 1): t0 to t1

Period 1 + 2 (p 1+2): t0 to t2

Period 2 (p 2): t1 to t2

B

Std. Error

Sig.

B

Std. Error

Sig.

B

Std. Error

Sig.

 

(Constant)

−2.83

3.33

 

−34.89

33.08

 

1.04

1.77

 

Controls

Age of farm under present management in 2002, logged

0.03

0.05

 

−0.05

0.06

 

−0.03

0.07

 

Descendant households, dummy

−0.45

0.24

 

0.34

0.30

 

0.45

0.34

 

Area

Area under rice, logged (ha)

0.63

0.06

***

0.68

0.08

***

0.49

0.07

***

Rice variety

Used improved variety in 2002, dummy

−0.01

0.11

       

Used improved variety in 2008, dummy

   

0.01

0.13

    

Always used improved rice variety during the period

      

0.12

0.21

 

Stopped using improved rice variety during the period

      

0.36

0.20

 

Started using improved rice variety during the period

      

0.01

0.15

 

Land type

Always used lowland during the period

0.02

0.11

 

−0.07

0.13

 

−0.08

0.16

 

Stopped using lowland during the period

0.35

0.28

 

0.01

0.17

 

0.01

0.19

 

Started using lowland during the period

−0.41

0.33

 

−0.12

0.19

 

0.01

0.22

 

Fertilizer

Always used fertilizer during the period

0.49

0.14

***

−0.28

0.18

 

−0.31

0.20

 

Stopped using fertilizer during the period

−0.03

0.16

 

−0.06

0.22

 

−0.44

0.32

 

Started using fertilizer during the period

0.48

0.17

**

0.08

0.17

 

0.13

0.18

 

Ploughing

Always used plough during the period

0.41

0.16

*

0.39

0.21

 

0.23

0.20

 

Stopped using plough during the period

0.07

0.32

 

0.30

0.25

 

−0.28

0.21

 

Started using plough during the period

0.03

0.15

 

0.31

0.17

 

0.23

0.21

 

Commercialization

Always sold rice during the period

0.45

0.09

***

0.48

0.12

***

0.40

0.13

**

Stopped or decreased selling rice during the period

0.03

0.14

 

0.12

0.20

 

−0.82

0.16

***

Started or increased selling rice during the period

0.37

0.10

***

0.39

0.15

*

0.48

0.18

**

Macro-level variables

Share of state budget for agriculture during the period, logged

0.25

0.22

 

2.57

2.28

 

1.99

1.20

 

Import of rice in relation to gross domestic production during the period, logged

−0.43

0.17

*

−1.33

0.94

 

−2.50

1.67

 

GDP per capita during the period, logged

1.45

0.54

**

6.08

4.86

 

−5.09

7.49

 

Distributional dimensions

Elite membership, dummy

0.36

0.17

*

0.04

0.20

 

0.01

0.17

 

Gender of farm manager in 2002, dummy

−0.02

0.11

 

−0.12

0.14

 

0.07

0.15

 

Weather

Drought in Eastern and Southern Africa 2002, dummy

−0.35

0.24

       

Floods in West Africa 2008, dummy

   

−0.89

0.43

*

   

Model info

No. of cases

284

297

297

Missing (%)

10

6

6

  1. *, ** and *** To denote test results significant at 5, 1 and 0.1 % levels