论述了三种基本的家庭经济行为及其影响因素。
The essay analyses three basic economic behaves of family and the factors that effect the behaves.
作为一个整体，经济层面发生的所有事情都是单个家庭或企业经济行为的加总。
Everything that happens at the level of the economy as a whole is simply the sum of the actions of individual households or firms.
正是加里·贝克尔(Gary Becker)于1950年代首先在芝加哥大学利用经济学工具解释家庭行为。
It was there that, in the 1950s, Gary Becker first used economic tools to understand the behaviour of the family.
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