Nevertheless it will clear our minds to consider them separately under two broad heads which we shall call the subjective factors and the objective factors.

然而，我们可以清楚地在我们称之为主观因素和客观因素的两大类下分别考虑它们。

But, in general, we shall in what follows take the subjective factors as given; and we shall assume that the propensity to consume depends only on changes in the objective factors.

但是，一般来说，我们将在下文中将主观因素视为给定；我们假设消费倾向只取决于客观因素的变化。