Thus Say's law, that the aggregate demand price of output as a whole is equal to its aggregate supply price for all volumes of output, is equivalent to the proposition that there is no obstacle to full employment.

因此，萨伊定律，即作为一个整体的产出的总需求价格等于其对所有产出量的总供给价格，等同于充分就业没有障碍的命题。