财富最大化理论预言个人会挑选当地最便宜的商品或服务，因为用来交换所必须放弃的数量是最少的。
Wealth maximization predicts that a person will choose to obtain the good or service in the place where it is cheapest, where the amount given up is the least.
消费者剩余是指消费者愿意为某种商品或服务所支付的最大数量与他实际支付的数量之差。
The difference between how much buyers are prepared to pay for a good and what they actually pay.
消费者剩余是指消费者愿意为某种商品或服务所支付的最大数量与他实际支付的数量之差。
The difference between how much buyers are prepared to pay for a good and what they actually pay.
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