During the course of planned economy translating to market economy , series reform has done to the system of the public regulation of railway industry , but there are still some problems . the essay introduces the general theories of public regulation first , analyses the necessity and the means of public regulation on the basis of the character of railway industry 虽然不能否认这些改革步骤具有重要的意义，政府职能开始转变，国家对铁路的管理从微观行政管理逐渐走向宏观经济管理；铁路从国家的行政附属机构，以社会属性为主，以追求社会效益为中心，逐渐走上了以企业属性为主，以追求经济效益为中心的现代企业发展道路。
The full thesis is based on carrying on the research achievements the predecessors made , and systematically probes into the applications of the economic information to the macro - economic management under the new situation . it involves achievement relations the predecessors made , and original creative opinions 全文在继承前人已有研究成果的基础上，运用经济学、信息学、管理学等基本理论，对新形势下经济信息在宏观经济管理中的应用进行系统研究，有前人的成果叙述，有独到的创新观点。
