ntinue to worsen, or is there relief in 城市里的交通堵塞会越来越严重还是会缓解在Рsight? These questions hinge, in large part, on the separate decisions of 即呢?这些问题在很大程度上都取决于成千上万Рmillions of people. To answer them requires an understanding of how 个个体的决定。若想回答这些问题必须明白人们Рpeople make choices under conditions of scarcity. 如何在稀缺的前提下进行选择。Р Р3)Opportunity cost is one of the most important ideas you will encounter 机会成本是经济学中的一个重要概念。这一概念Рin economics. The concept sheds light on virtually every problem that 有助于理解一切经济问题,包括从消费者或公司Рeconomists consider, whether it be explaining the behavior of consumers 的行为选择到贫困或种族歧视等一些重大社会Рor business firms or understanding important social problems like poverty 问题。在解释以上这些问题时,经济学家都采用Рor racial discrimination. In all of these cases, economists apply the 了机会成本的原则。Рprinciple of opportunity cost.
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