According to the origin of economies of scale, the article establishes that economies of scale come from economies of specialization , economies of technological scale , economies of scope, economies of transaction cost and economies of management. On the basis of which, it summarizes the concept of economies of scale. Then, the article deals with the theories of technology economies and transaction cost. From the two points of view, it analysis economies of scale in the enterprises of road transportation and shows the method of measure and some steps to carry out the economies of scale in the enterprises of road transportation. |