Variables

Equation

R²

F

t

Growth Rate %

Egypt

Cultivated area

${\widehat{Y}}_t={\text{e}}^{5.6-0.014}{}^{X_t}$

0.32

5.99*

−2.4*

−1.4

Production

${\widehat{Y}}_t={\text{e}}^{8.3-0.001}{}^{X_t}$

0.12

1.8

−1.3

−0.1

Yield

${\widehat{Y}}_t={\text{e}}^{\text{2}.\text{7}+0.00\text{7}}{}^{X_t}$

0.68

27.9***

5.3***

0.7

New lands

Cultivated area

${\widehat{Y}}_t={\text{e}}^{\text{4}.\text{7}+0.0\text{15}}{}^{X_t}$

0.11

1.6

1.2

1.5

Production

${\widehat{Y}}_t={\text{e}}^{\text{7}.\text{3}+0.0\text{28}}{}^{X_t}$

0.23

3.9

1.9

2.8

Yield

${\widehat{Y}}_t={\text{e}}^{\text{2}.\text{6}+0.0\text{14}}{}^{X_t}$

0.47

11.7*

3.4*

1.4