1. _The enterpriser guarantees to the capitalist-lender a fixed return._ Agents will yield the highest economic rent of which they are capable only in the hands of those who can use them with exceptional skill. Owners of capital who for any reason, such as youth, inexperience, ill health, incapacity, or conflicting duties, are not able to make agents yield the average rent, seek out, or are sought out by, those who in general can make the agents yield more than the average. The interest contract between them is one of mutual advantage, in that the enterpriser pays a definite sum to the investor unable himself to apply his productive agents. Immense sums of capital are now put into the hands of small enterprisers, such as Western farmers improving their lands, builders of city homes and business blocks, and small manufacturers. But stocks and bonds of corporations give a wide variety of investments which shade off from the safer or capitalistic type, to the more uncertain, or enterpriser's type. First-mortgage bonds, being a first claim on the income and property, have the highest security and yield generally the lowest interest. Even national bonds are not absolutely safe, and for that reason as well as because of their fluctuation in price, even their purchase has something of the nature of an enterprise. Stocks are the enterpriser's type of investment, the dividends being more uncertain, but giving the chance of a higher return than the average. It is because some stand ready to assume the risk of making goods yield average returns or more, that others can sit and enjoy a fixed income with little effort and in comparative security. [Sidenote: The enterpriser's insurance of the lender's capital]