individual income amount的意思|示意

It was difficult for individual samurai overlords to increase their income because the amount of rice that farmers could be made to pay in taxes was not unlimited.

对于单个的武士统治者来说，要增加他们的收入是很困难的，因为农民可以用来纳税的大米数量并不是无限的。

And think of the amount this individual produces as depending on effort, which in turn depends on how much of his or her income the individual gets to keep at the margin, i.e.

再设想该个体的生产总量视同于其所付出的劳力，这一劳力转而又由其收入的多少决定，该收入为其所能留存的剩余量，即，1 - t。