_Variations of Freight Charges from Static Standards._--Place values are not an exception to the general rule of value; and yet freight charges actually remain at a greater distance from the standards furnished by the direct costs of carrying than do the returns for other services from corresponding standards. There is an approach to monopoly in this department, and, when direct competition exists, it is a more imperfect process here than it is elsewhere. Moreover, the costs which here figure as an element in the adjustment of freight charges are of a peculiar kind, which, although not unknown in other departments of production, have nowhere else so great influence and importance. The study of railroads and their charges is baffling, not because the economic forces do not here work at all, but because here they encounter a resistance which is exceptionally strong and persistent. The quasi-monopoly which elsewhere continues only briefly lasts long in this department of production; but it is subject to the same principles which everywhere rule. _The Modes of Approaching the Study of Freight Charges._--In studying freight charges we may, if we choose, start with the intricate tariffs of railroads, as they now stand, and try to find some principle which, if applied, would bring order out of the mass of capricious and inconsistent rates. Such a rule will ultimately be needed, but it can best be obtained by examining at the outset the transportation which is done by simple means and under active competition. It will be found (1) that basic principles apply to all transportation whether it be by railroad or by simpler means; (2) that in the early development of every system of common carrying the action of these principles is disturbed; (3) that in the case of the more primitive systems the disturbances are soon overcome, but that they continue longer and produce far greater effects in the case of railroads; (4) that one important influence of this kind tends naturally to disappear, while another continues and calls for regulation by the state; and (5) that this regulation needs to be based on natural tendencies and to conform to the laws which, when competition rules, govern the returns of all classes of producers.