"The World Health Organization confirmed COVID-19 a pandemic on March 11, 2020, causing vast impact on international economy. The coronavirus pandemic has given rise to an unprecedented global health and economic crises. Apart from the toll of early deaths, economic activities have been stalled...

This research sheds light on the causal link between commodity price indexes, i.e., the Agricultural Raw Materials Price Index, Industry Input Price Index, Metal Price Index, and Energy Price Index, in the global market, using wavelet coherence, Toda-Yamamoto causality, and gradual shift...