However, it is assumed that this famine was not brought about naturally but was caused by a shortage of food that had occurred because, in addition to the transfer of the national capital to Fukuhara by the Taira clan, MINAMOTO no Yoritomo and Yoshinaka KISO took up arms, and rice as render was not carried to the capital.
なお、この飢饉は自然発生的なものではなく、源頼朝・木曽義仲の挙兵や平氏の福原遷都によって都への貢米が押しとどめられ、食糧難に襲われたものであると想像される。