Table 3 Statistical description of double logarithmic regression

Variable Expected sign Coefficient t-value t-table p-value
Constant 10.55 45.145 0.000
Government Purchase Price (GPP) - –0.13 –5.235 0.000
Market Operations (MO) - 0.01 5.323 0.672 0.000
Central Government Rice Reserve (CGRR) - –0.02 –5.830 0.000
Rice Imports (RI) - –0.0004 –2.804 0.007
R 0.811 F-value 26.385 Prob. F 0.000
R square 0.657 F-table 2.773 α 0.05
Adjusted R square 0.632
Source: Double Logarithmic Regression Analysis.