The word ‘diao had four meanings or usages relation to fiscal and economic policy in Han Dynasties: firstly, it meant ‘allocate and transfer ; secondly, it meant ‘purchase by government ; thirdly, it was used as general term of taxes and levies; and finally, it meant ‘exorbitant taxes and levies .
两汉时期与财政经济政策有关的“调” ,主要有以下 4种用法 :第一 ,表示调发、调度 ;第二 ,官府出钱采购所需物品 ,有时也称为“调” ;第三 ,作为赋税的泛称 ,“租调”、“赋调”频繁出现于史籍 ;第四 ,表示苛捐杂税。