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。