_Capital a time-saver._--All these forms of wealth serve in production by extending the possible waiting between an effort of any kind and the greater satisfaction secured by it. No community could begin farming as a business until it had secured housing and seeds and tools and provisions in some form for most of a year's sustenance. All the capital that constructs a great thoroughfare is used in getting ready to satisfy wants in many future years. Capital furnishes subsistence for laborers of every kind during those years of waiting for a product. This is true capital, because the object of its use is a greater product of wealth; but the product may be long delayed. So all accumulated wealth in every form represents sustained labor during the past. Professor Taussig estimates the accumulation of subsistence in all existing goods at five years of labor for the community. The total value of farms in our country is just about five times the average annual product of the farms, though a large portion of the land is unused.
_Capital circulating or fixed._--A further distinction is desirable between capital in food, fuel or stock in trade, which may be turned at a single use into new wealth, and capital in buildings, bridges, roads and farms, which may be used many times in adding new wealth before they entirely disappear or give place to new forms of capital. The first is called circulating capital, and the last fixed capital.
The degree of permanence in fixed capital is indefinite of course--even drains vary in permanence--and the line between the two is not always easily drawn, yet the distinction is real. Most men distinguish "the plant" in any enterprise from "the current supplies," and realize that some fit proportion exists between them. A farm well equipped can not be handled to advantage without a proportional investment in current supplies. Many a renter cannot pay his rent for want of means to work his farm profitably. If the farm were given him, he would still be hampered by the same lack of consumable goods to turn at once into larger products. Many a "land poor" farmer would gain at once by exchange of acres for more "current supplies" for his farming, such as food for help, feed for teams and stock, seed or fertilizers for his crops, or young stock to consume the raw product of his fields. In the fourteenth century the stock of European farms was worth three times the value of the farms. Similar conditions are found now in some newer portions of the United States. It is impossible to estimate exactly the existing ratio between fixed and circulating capital from statistics at hand. Farmers in older, more developed regions can use, without suffering, a larger per cent of fixed capital than pioneers can, because the circulation is more rapid. For the same reason the raising of staple annual crops gives place to double cropping, dairying and full feeding as land grows more valuable, frequent returns serving instead of large circulating capital.