Later, the definition was narrowed by John Stuart Mill, for instance, into the sense of wealth set aside to increase production. From this point of view capital practically means the equipment and tools of industry in the widest sense of the word, including agriculture and transport. Lately economists have shown a tendency to go back to the wider application of the word, and an American economist, Dr Anderson, who has just published a book on the Value of Money, goes so far therein as to state that a "dollar is capital." The language of the City generally uses the word in the narrow sense adopted by Mill, and there is very much to be said for this view of the real meaning of capital. Marbles to play with, houses to live in, motor-cars to go joy-riding in—all these are assets which can be disposed of, and so, in a sense, may be called capital. But the businesslike meaning of the word is the tools and equipment of industry, because it is only by their possession that the wealth of mankind not only increases man's present enjoyment, but enhances his future output of the goods necessary for his existence.

If we take the word in this sense it becomes at once apparent that the theory is exaggerated which maintains that war is destroying capital, so that capital will long be at a famine price. The extent to which war is actually destroying the tools and equipment of industry is quite limited. On the actual battlefield that sort of destruction proceeds apace when factories are shelled into shapeless lumps of bricks, and when the surface of the earth, that man's skill had developed into great productive fertility, is torn into craters and covered with rubbish. There is also rapid destruction of a very important part of the equipment of industry owing to the submarine campaign, which is sinking so many fine ships that were meant to carry goods from one country to another. But, apart from this actual destruction on the battlefield and on the sea, the tools and equipment of industry over the greater part of the earth remain untouched. It is true that, owing to the preoccupations of the war, not so much work as usual is being put into the upkeep and repair of our railways, factories and other industrial tools. But at the same time an enormous amount of new machinery is being created for the manufacture of munitions and other stuff needed for the war, and a large part of this new machinery ought to be available as industrial capital when the war is over. Those people who talk so glibly of the enormous destruction of capital by the war are surely making a mistake common to minds which look at economic questions through a financial telescope, mistaking money for capital. They see that an enormous amount of money is being spent on the war, and they jump to the conclusion that this money, if not spent upon the war, would have been put into capital investments and so have increased the tools and equipment of industry. In fact, a great deal of the money now spent upon the war would have been spent, if there had been no war, not upon increasing the equipment of production, but upon purely frivolous and extravagant consumption. There is no need to dwell on the effect of war in reducing many kinds of expenditure on which hundreds of millions must have gone in peace time, and this restriction of extravagant consumption has to be deducted before we even admit, not that all money spent upon the war is destroyed capital, but even that all the money spent upon the war is destroying what might otherwise have become capital.

If, then, it is true that the war is not making a very terribly substantial inroad upon the mass of existing capital, how is it going to affect the supply of capital in the future? To answer this question we have to see how capital is created. The answer to this question is very simple, very obvious, and very dull. Capital can only be created by saving.

Saving is such an entirely unpopular virtue that it seems at first sight a disastrous conclusion to arrive at, that if we want to increase the supply of capital it can only be done by stimulating this unattractive habit; and there is a further question to be asked—whether it will be necessary or desirable to have a great increase in the supply of capital. As was pointed out above, one theory of after-war needs maintains that the world will be so exhausted by this great struggle that it will have no enterprise and no energy left, and that capital will go begging. If this be so, we need not trouble to inquire as to whether the supply of capital can be made plentiful. But I venture to think that this view is very probably wrong, though it is very dangerous to prophesy concerning the purely psychological question of the state of mind in which the citizens of the warring Powers will end the war. It is, however, at least probable that the prices which are then likely to rule will stimulate enterprise all over the world; that every one will see that there is a great work to be done in getting industry back on to a peace basis, and a great profit to be made by those who do this work most successfully, and that the demand for capital is likely, for some years at least, to clamour for all that can be produced.

To go back, then, to the statement that only by saving can capital be created. The man who saves, instead of spending money on his own enjoyment, hands it over to some company or Government to be spent on some industrial or national purpose. When it is put into industry it builds a factory or a ship or a railway or a canal, or clears a wilderness for cultivation, or does one of the innumerable other things which are necessary for the production and transport of the goods which mankind enjoys. And it is only by this process of handing over buying power, instead of using it for our own amusement and enjoyment, to others who will use it for furthering production that the tools and equipment of industry can be multiplied.

Something can be done by banks and financiers in supplying credit in the form of advances and acceptances; but this method is only like oiling the wheel of industry, the real driving power of which has to be saved capital. Creating credits simply means that a certain amount of buying power is manufactured and handed over to those to whom the credit is given. It does not set free any labour or goods to be put into industry. That is only done by the man who abstains from consumption and saves money by restraining his desire to spend it on himself, and puts it at the disposal of industry. The man who saves money, who has always hitherto been rather despised by his companions and resented by a certain class of social reformer and many other uneducated people as a capitalist bloodsucker, is thus, in fact, the person who leaves the world richer than he found it, having put his money, the product of his own work, into increasing the world's output, instead of spending it on such forms of enjoyment as heavy lunches and cinema shows.

The man who does this beneficent work, increasing mankind's output of goods, and providing employment as long as the factory or railway that he helps to build is running, is induced to do so, as a rule, by the purely selfish motive of providing for his old age or for those who come after him by earning the rate of interest that is paid to him for his capital. What is this rate of interest going to be, and how much effect does it have upon the creation of capital?

Some people argue that a low rate of interest makes people save more because it is necessary for them to save more in order to acquire independence. Others maintain that a high rate of interest induces people to save because they can see the direct advantage of doing so. Both these arguments are probably true in some cases. But, as a rule, people who have the instinct of saving will save, within certain limits, whatever the rate of interest may be. When the rate of interest is low they will certainly not reduce their saving because each hundred pounds that they put away brings them in comparatively little, and when the rate of interest is high the attraction of the high rate will also deter them from diminishing the amount that they put aside. Moreover, we have to consider, not only the money payment involved by the rate of interest, but its buying power in goods. In 1896 trustee securities could only be bought to return a yield of 2-1/2 per cent. for the buyer; now the investor can get 5-1/4 per cent. and more from the British Government. And yet the power that this 5-1/4 gives him over the goods and services that he wants for his comfort Is probably not greater, and very likely rather less, than the power which he got in 1896 from his 2-1/2 per cent. One of the few facts which seem to stand out clearly from a study of the movement of the prices of securities, and consequently of the rate of interest to be derived from them, is that the rate of interest is high when the price of commodities is high, and vice versa. So that the answer to the question: What is the rate of interest likely to be after the war? may be given, in Quaker fashion, by another question: What will happen to the index number of the prices of commodities? It seems fairly probable that both these questions may be answered, very tentatively and diffidently, by the expression of a hope that after a time, when peace conditions have settled down and all the merchant ships of the world have been restored to their peaceful occupations, the general level of the price of commodities will be materially lower than it is now, though probably considerably higher than it was before the war. If this be so, then it is fairly safe to expect that the rate of interest, as expressed in money, will follow the movement of prices of goods. But it must be remembered that by rate of interest I mean the pure rate of interest, that is to say, the rate earned on perpetual fixed-charge securities of the highest class. It may be that, owing to the very large amount of gilt-edged securities created in the course of the war by the various warring Governments, the rate of profit to be earned by the man who takes the risks of industry from dividends on ordinary shares and stocks will have to be made relatively more attractive than it was before the war.

If, then, capital can only be created by saving, how far will the war have helped towards its more plentiful production?

Here, again, we are faced with a psychological question which can only be answered by those who are bold enough to forecast the state of mind in which the majority of people will find themselves when the war is over. If there is a great reaction, and everybody's one desire is to throw this nightmare of war off their chests and go back to the times as they were before it happened, then all that the war has taught us about the production of capital will have been wasted. But I rather doubt whether this will be so. Saving merely means the diversion of a certain proportion of the output of industry into the further equipment of industry. The war has taught us lessons which, if we use them aright, will help us to increase enormously the output of industry. So that if these lessons are used aright, and industry does not waste its time in squabbles over the sharing of its product, its output may be so great that a comparatively smaller amount of saving in relation to the total output may produce a larger amount of capital than was made available in days before the war. There is a further point, that the war has taught a great many people who never saved at all to save a good deal. It was estimated before the war that we in this country were saving about four hundred millions a year. This figure was necessarily a guess, and must be taken for what it is worth. There can be no doubt that the amount of real saving now in progress, voluntary, owing to the patriotic effort of people who think they ought to restrict their own consumption so that the needs of our fighters may be provided, and enforced through the action of the Government in taking taxes and inflating the currency, is very much greater than it was before the war; probably at least twice as much when all allowance has been made for depreciation of the currency. Some people think that this saving lesson will have been learned, will have become a habit, will continue and will grow. If so, if people save a larger proportion of their income than they did before, and if the total output of goods is increased, as it easily may be, it becomes at once evident that there is a possibility of a freer supply of capital for industry than has ever been seen. But in looking at this hopeful and optimistic picture, we must never forget that it can only be painted by those who are prepared to leave out of the canvas all the danger of industrial strife and dislocation, and all the danger of reaction to the old habits of luxurious spending which are so strong a possibility in the other direction. The war has shown us how we can, if we like, increase production, reduce consumption, and so have a larger margin than ever before to be put into providing capital for industry. Whether we really have learned these lessons and will apply them remains to be seen.