曾经看到一个有意思的经济学例子,说的是在法国,出发地、目的地、运营时间、车速等皆相同的两列火车,车票定价却可能不同。乍看起来这似乎有失公平,两列各方面皆相同的火车难道票价不应该一样吗?但实际上,由于多数乘客会选择票价相对较低的列车,因而较高票价的列车就更为宽敞和舒适,结果出价较高的乘客享受了更好的服务,并不存在“不公平”的问题。这个例子的真实性我没有考查过(对法国火车票票价系统有所了解的读者朋友可以告诉我详情),但 We have seen an interesting example of economics saying that two trains of the same type in France, the place of departure, the destination, the operating hours, the speed of the vehicle, etc., may be priced differently. At first glance, this seems unfair. Should not the fare be the same on all two trains in all respects? However, in fact, the higher fare train will be due to the fact that most passengers choose a train with a relatively lower fare More spacious and comfortable, the result bid higher passengers enjoy better service, there is no “unfair ” problem. I have not examined the authenticity of this example (a reader friend with an understanding of the French train fare system can tell me the details)