《管子·山至数》
粮价就会互相影响而跌价十分之三。剩下的粮食以货币收购，粮价按跌落回来的标准，大夫也就无法抬高粮价了。
五谷相靡而重去什三，为余以国币谷准反行，大夫无什于重。
The grain price will fall by a third due to mutual influence. The remaining grain is purchased with money, and the grain price is based on the decline standard, so the doctor will not be able to raise the grain price.