In the last chapter we saw that many essentials to production have to be provided under whatever system production is carried on. Among these were raw materials, machinery, equipment of all kinds, a factory and a place to carry the work out, railways, ships, etc., to carry the product to market, the food and subsistence of the workers during the time that elapses between the beginning of production and the sale of the product, and finally provision against the risk that the product when finished may not suit the views of the consumers who are asked to buy it. These essentials are provided by capital. Somebody with money in his pocket buys these things for industry instead of spending it on himself. Thus at first sight he seems fully to earn the interest and profit with which he is rewarded if, and only if, the services that he and his manager
