市场集的有序性及其横向分类

The ordering of market set and its lateral classification

对市场做出一种横向分类,将其归为公益市场、典型市场和黑色市场3类,并对它们的社会性和公益性进行了数学描述,最后以铁路运输系统为例,说明政府对公益性市场干预的必要性.

Lateral classification of markets was given,among it there were public welfare market, typical market and black market. Their sociality and public benefit was descripted mathematically. A case to railway transport market was used to testify the necessarity of government intervention in public benefit.