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Mathematical Modeling of the Price Volatility of Maize and Sorghum between 1960 and 2022

Journal of Mathematics Letters | Vol 1, Issue 1

Table 6. Diagnostic Test for the Two Best Fitted GARCH Family Models

Heteroskedasticity Test: ARCH  
 IGARCH(1,1) – MAIZE 
F-statistic0.748158    Prob. F(1,749)0.3873
Obs*R-squared0.749407    Prob. Chi-Square(1)0.3867
 IGARCH (1,1) - SORGHUM  
F-statistic3.203876    Prob. F(1,724)0.0739
Obs*R-squared3.198572    Prob. Chi-Square(1)0.0737