The basic economic analysis that Becker developed was applicable everywhere, for everyone, and for all time. Conditions in the US in the nineteenth and late twentieth centuries – or in North America and Europe and developing Asia, Africa, or Latin America – might differ; but the same economic models could be used to understand changing events and circumstances.
贝克尔所开发的基本经济分析可以由任何人用在任何地区、任何时间。十九世纪和二十世纪末的美国环境或许有所不同，北美和欧洲与发展中的亚洲、非洲或拉丁美洲的环境或许有所不同，但可以用同样的经济模型理解变化的事件和环境。