Long, Shaobo; Li, Jieyu; Luo, Tianyuan - 2022
there is a positive relationship between global economic policy uncertainty (GEPU) and international grain prices, and the … relationship is asymmetric. Specifically, global economic policy uncertainty has a greater negative impact on wheat and maize … that the asymmetric impact of global economic policy uncertainty on rice price is not significant in the long-run. The …