Surely this body of men is equal to whatever adjustment may be necessary. Rates will probably never be arranged to suit every individual shipper; but if the people, as a whole, believe that the railroads are fairly capitalized on a reasonable basis of value, and the rates, in the aggregate, are adjusted so that unduly high profits are not made, individual complaints of injustice may easily be taken care of. The most important considerations affecting the regulation of railroad rates arise in attempting to fix the amount which shall be considered a fair return on the investment. If a certain rate of interest is fixed as the maximum which may be earned, all incentive toward improvement or progress is removed. The effect of this would be, of course, to retard all development. Once a railroad was earning its legal rate of interest, there would be no necessity of cutting down grades, building larger locomotives to handle larger trains, investigating the economics of operation and location, in order to introduce the thousand and one economies which are being developed day by day, or for our railroad presidents to lie awake nights thinking how they are to save that million dollars a day for the benefit of the always ungrateful shipper. This objection against rate regulation, and incidentally against physical valuation, can undoubtedly be overcome. One proposal which has been made is somewhat along the lines on which it is proposed to finance the New York Subways, the profits to be divided between the railroads and the State, after a certain rate of interest had been earned. There is nothing novel about this, as several railroad charters have been granted with a provision that all earnings, over an amount necessary to provide a certain rate of interest, should be paid to the State. Another suggestion[25] is that the reasonable rate of return be fixed as a percentage of the gross income, irrespective of the amount of capital required to produce it. There are probably other ways in which this might be worked out and adjusted, and this phase of the subject surely does not present any insuperable objections.