Capitalists are of two principal kinds: those who employ their own money in their own enterprises; and those who lend their money to others for use in industry. The former may be called active capitalists, the latter loan-capitalists. Perhaps a majority of active capitalists use some borrowed money in their business. To the lenders of this borrowed money or capital they turn over a part of the product in the form of interest. When, therefore, interest is defined as the share of the product that goes to the capitalist, it is the owner of capital-value rather than of capital-instruments that is meant. For the man who has loaned 50,000 dollars at five per cent. to the wagon manufacturer is not, except hypothetically, the owner of the buildings which have been erected with that money. These are owned (subject possibly to a mortgage) by the borrower, the active capitalist. But the abstract value which has gone into them continues to be the property of the lender. As owner thereof, he, instead of the active capitalist, receives the interest that is assigned to this portion of the total capital. Hence interest is the share of the product that is taken by the owner of capital, whether he employs it himself or lends it to some one else. While the fundamental reason of interest is the fact that certain concrete instruments are necessary to the making of the product, interest is always _reckoned_ on capital-value, and goes to the owner of the capital-value. It goes to the man whose money has been put into the instruments, whether or not he is the owner of the instruments. _Meaning of Interest_