公路货运政府管制的经济机理

运用相关经济理论对公路货运政府管制的必要性和内容设计进行深入分析。分析结果表明，由于公路基础设施属于准公共产品，现阶段大力发展高等级收费公路能够增加社会福利，但必须对通行费率进行适当管制；具有规模经济、范围经济的网络化运输方式无法有效开展的原因不是市场集中度过低，而是外部性、信息不对称等因素导致市场失灵的发生，因此政府应该围绕保证市场机制的正常发挥而设计相关的经济管制内容。

Economic mechanism of government regulation for road freight transportation

The paper makes in-depth analysis on necessities and content design of government regulation with economic theory. The research result shows that as road basic facilities belong to half-public product, the rapid development for more toll roads can increase social welfare. Under this situation, the government should make appropriate regulation to fees. The authors find that the reasons why the network transportation, although scale economy and range economy have already been developed, cannot be carried out to a certain extent are not the low degree of market concentration, but are from exterior reasons and from the information asymmetry that results in the market failure. Accordingly, the government, in order to ensure a smooth operation of transportation market, should lay down and design certain economic regulations that can promote the work.