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

Table 3.

Heteroskedasticity Test: ARCH

Maize Returns

F-statistic 11269.63     Prob. F(1,749) 0.0000
Obs*R-squared 704.1977     Prob. Chi-Square(1) 0.0000
Sorghum Returns
F-statistic 11714.10     Prob. F(1,725) 0.0000
Obs*R-squared 684.6276     Prob. Chi-Square(1) 0.0000