The Central International of Economic Analyses and Agricultural Market Studies (Ceema) reported, in an analysis referring to the period from November 14 to 20 and released on Thursday (20), that corn prices in Brazil remained stable, "this time with a downward bias." According to the survey, the average price in Rio Grande do Sul fell to R$ 61.86 per sack, while the main market places in the state remained at R$ 60.00. In other regions, prices ranged between R$ 48.00 and R$ 64.00 per sack.