Now if for a given value of N the expected proceeds are greater than the aggregate supply price, i.e.

现在，如果对于给定的 N 值，预期收益大于总供应价格，即。

We shall return to the aggregate supply function in chapter 20, where we discuss its inverse under the name of the employment function.

我们将在第 20 章回到总供给函数，在就业函数的名称下讨论它的反函数。

The aggregate supply function, however, which depends in the main on the physical conditions of supply, involves few considerations which are not already familiar.

然而，总供给函数主要取决于供给的物理条件， 涉及一些不为人所知的考虑因素。

The value of D at the point of the aggregate demand function, where it is intersected by the aggregate supply function, will be called the effective demand.

总需求函数与总供给函数相交点处的 D 值称为有效需求。

(5) Hence the volume of employment in equilibrium depends on (i) the aggregate supply function, (ii) the propensity to consume, and (iii) the volume of investment, D2.

(5) 因此， 均衡的就业量取决于 (i) 总供给函数， (ii) 消费倾向， 以及 (iii) 投资量 D2。

So far we have established the preliminary conclusion that the volume of employment is determined by the point of intersection of the aggregate supply function with the aggregate demand function.

至此，我们初步建立了就业量由总供给函数与总需求函数的交点决定的结论。

On the other hand, the aggregate supply price of the output of a given amount of employment is the expectation of proceeds which will just make it worth the while of the entrepreneurs to give that employment.

另一方面，给定数量的就业产出的总供给价格是收益的预期，这将使企业家提供该就业岗位值得。

For since consumers will spend less than the increase in aggregate supply price when employment is increased, the increased employment will prove unprofitable unless there is an increase in investment to fill the gap.

因为当就业增加时，消费者的支出将低于总供给价格的增加，因此除非增加投资来填补缺口，否则增加的就业将证明是无利可图的。

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。