We have shown above that the amount of consumption depends on net income rather than on income, since it is, by definition, his net income that a man has primarily in mind when he is deciding his scale of consumption.

我们在上面已经表明，消费量取决于净收入而不是收入，因为根据定义，一个人在决定他的消费规模时首先考虑的是他的净收入。