marginal utility theory of value

例句：

1. 1.The marginal utility theory of value suggests that the more people have, the less they value it.
   边际效用价值论认为，人们拥有的越多，对它的看重就越少。
2. 2.The marginal utility theory of value has been widely applied in economics and management.
   边际效用价值论在经济学和管理学中得到了广泛的应用。
3. 3. The marginal utility theory of value provides a useful framework for understanding consumer behavior.
   边际效用价值论为理解消费者行为提供了一个有用的框架。