_The Conditions of Increasing Future Well-being._--The realization of this resultant of all dynamic forces requires that the rate of growth of population should be subject to a natural check, that the increase of capital should not be unduly retarded, that technical improvements should go on, and that the organization which is effected should be of the kind which makes for efficiency but not for monopoly. Competition must be kept alive. In altered ways, indeed, the essential power of it must forever dominate the industrial system, as it will do if the state shall do its duty and not otherwise. A dynamic society requires a dynamic government whose enlarging functions are shaped by economic conditions. CHAPTER XIX THE LAW OF POPULATION Since the optimistic conclusion reached in the preceding chapter is contingent on an increase of wealth which is not neutralized by an increase of population, it remains to be seen whether the population tends to grow at a rate that gives reason to fear such a neutralizing. Does progress in method and in wealth tend to stimulate that enlarging of the number of working people which, in so far as they are concerned, would bring progress to an end? Is the dynamic movement self-retarding and will it necessarily halt? The answer to this question depends, in part, on the law of population. _The Malthusian Law._--We need first to know whether the growth of population is subject to a law, and if so, whether this law insures the maintenance of the present rate of increase or a retarding of it. The law of population formulated by Malthus at the beginning of the last century is the single extensive and important contribution to economic dynamics made by the early economists. It was based more upon statistics and less on _a priori_ reasoning than were most of the classical doctrines. Even now the statement as made by Malthus requires in form no extensive supplementing, and yet the change which is required is sufficient to reverse completely the original conclusion of the teaching. Malthusianism constituted the especially "dismal" element in the early political economy, and yet, as stated by its author, it revealed the possibility of a comfortable future for the working class. One might look with cheerfulness on every threatening influence it described if he could be sure that the so-called "standard of living" on which everything depends would rise. The difficulty lay in the fact that the teaching afforded no evidence that it would thus rise. The common impression of readers was that it was destined to remain stationary and that too at a low level. The workmen of Malthus's time were not accustomed to getting much more than the barest subsistence, and not many economists expected that they would get much more, even though the world generally should make gains.