Equation (4.1)

Equation (4.2)

Equation (4.3)

Constant

−34.330

−36.549

−14.410

(8.372)

(8.468)

(5.623)

Gross national expenditure (% of GDP)

0.236

0.285

0.192

(0.066)

(0.062)

(0.046)

Industry, value added (% of GDP)

0.271

0.264

(0.100)

(0.124)

Trade openness (% GDP)

0.046

(0.023)

Share of agriculture to GDP

−0.096

(0.050)

Tariff rate, all products (%)

0.180

0.207

(0.091)

(0.092)

AID (% of GDP)

0.035

0.022

0.011

(0.011)

(0.009)

(0.007)

Observation

83

83

109

R-squared

0.49

0.45

0.38