经济学是不是有趣的学问?不少人可能有不同的看法。但经济学中时不时冒出一些有趣的例子,却不可否认。譬如英国经济学家阿瑟·庇古(Arthur Cecil Pigou,1877—1959)曾经举出一个例子,大致如下:工厂生产的同时也在排污,而后者会影响附近的居民。但工厂的生产决策只考虑自己的成本,不考虑污染给居民生活带来的影响。在这种情况下,企业的 Is not economics an interesting science? Many people may have different opinions. However, some interesting examples emerge from time to time in economics, but it is undeniable. For example, Arthur Cecil Pigou (1877-1959), an economist in the United Kingdom, once cited an example: The factory is also producing pollutants while the latter will affect nearby residents. However, the factory’s production decisions only consider their own costs, regardless of the impact of pollution on the lives of residents. In this case, the business