Chapter 167 of 227 · The Theory of Interest by Irving Fisher
§5. Business vs. Personal Loans
Business loans therefore serve to reshape the income streams to conform to the time preferences of their owners just as truly as do personal loans. All financing may be considered as contrived to keep income flowing smoothly to serve human impatience.
The important difference between business loans and personal loans is not as to impatience but as to investment opportunity. In personal loans the opportunity principle plays a minor rôle or none at all. The personal borrower borrows not to invest but to remedy or prevent a present dearth of income because of illness or the desire to anticipate future income, the amount of which has little or nothing to do with the loan. The business borrower, on the other hand, borrows to remedy or prevent a dearth of present income because he wishes to invest and increase his future incomes. Each is impelled by impatience to fill a hole in his present income, but the one hole was cut by involuntary illness or voluntary spending, the other by voluntary investment.
Let us examine this difference more in detail. Let us suppose two borrowers, one a personal borrower, because of some misfortune such as an illness, and the other a business borrower, because of an investment. Let us suppose that, otherwise, they are alike in all respects affecting our present problem. Each has a prospective income of $10,000 this year and $12,500 next year, after allowing for the effects of the misfortune in one case and for that Edition: current; Page: [366] of the investment in the other, but before any loan is made.
Each will, let us say, borrow $1,000 this year and repay this with 5 per cent interest next year, making a total repayment of $1,050. Each, therefore, will have a finally adjusted income this year of $10,000 + $1,000 or $11,000 and next year of $12,500 - $1,050 or $11,450. The effect of the loan is thus identical on the income streams in the two cases. The difference is that the unfortunate, if deprived of his loan, could not escape from his lower income stream this year of $10,000 despite his higher income next year, whereas the business man, if deprived of his loan, could, if he chose, give up easily the investment altogether. That is, the merchant has another option which the unfortunate lacks. He has two options and therefore the opportunity to replace one by the other.
If the merchant did not have this extra option, the two cases would be so similar that not even a stickler for the distinction between a consumption loan and a production loan would assert any essential difference. For, suppose the merchant had already been committed sometime previously to the investment, not, perhaps, realizing that he would be unable to pay for it without borrowing or skimping. When the time arrives when he must of necessity pay in his money, he finds that a loan is badly needed to avoid pinching himself in income. He will now think of the loan not as enabling him to invest, for that has to be done anyway, but as enabling him to buy his bread and butter. In short, his loan, like the unfortunate's, is now a consumption loan! It is because ordinarily the merchant is not thus constrained to make the investment that the loan is connected in his mind with the investment rather than with his private necessities. Edition: current; Page: [367] Yet, in either case, it serves to relieve his needs. In a sense all loans are impatience loans, but in the production case he has another method of relief—not to invest at all. The essential contrast, then, between him and the unfortunate is simply that he has a possible course open to him which the latter does not have.
This is not to deny that the loan (and the investment which it makes possible) is also to be considered for the purpose of increasing his income. It is both. As stated already, had he wished, he might have refrained, ordinarily, altogether from making the investment. He would, then, let us suppose, have had an income of $11,000 a year both this year and next. He was attracted by the opportunity to invest $1,000 because while this would reduce this year's income by that amount—to $10,000—it would increase next year's by $1,500—to $12,500. The whole set of operations go together. If we separate them in thought, the true sequence is: of the two optional income streams ($11,000, $11,000, on the one hand, and $10,000, $12,500 on the other) the merchant selects the latter because it had the greater present value (or, what amounts to the same thing, because the rate, 50 per cent, of the return of $1,500 on the sacrifice of $1,000 is greater than the rate of interest, 5 per cent). That being done he then borrows because, although he will have the same present value, he will get a more desirable time shape. This description takes account of the whole series of operations, and corresponds to the principles propounded in Chapter VI. It is the extra option which gives rise to the contention that the loan produces a profit not possible or easy without it, and that it is, therefore, productive. And this is true in the sense that the loan carries with it the extra option. The Edition: current; Page: [368] loan is productive in so far as without it this extra option which is productive would not be chosen.
We have just seen that the loan phenomena can be resolved into two separate steps. Yet since it may often happen, as shown in Chapter VI, that the first step (choice of options) would not be taken unless the second step (loan) were already in contemplation, or even fully contracted, it is true that in a sense the choice of the loan includes the choice between the options. In this sense, and in this sense alone, is the loan productive. It is productive in that it gives to the merchant a productive investment opportunity. But it is better, or at any rate admissible, to say that it is this investment opportunity which is productive rather than the loan which makes it possible.
In practical life, however, the investment and the loan are not usually thought of as separate operations. Rather are they thought of as parts of the same operations. The investment, especially if a large one, would not, and often could not, be made unless the resultant distortion of the income stream is at once and by prearrangement, remedied by a loan. The loan is in fact often contracted for before any committal to the investment, and were it not employed, or something like it, the distortion of the income stream needed to make the investment possible would often reduce it to zero or below.
The point here is that if we do try to separate the rôles of the loan and the investment we cannot say that the loan by itself, without the investment, yields a business profit, but we can say that the investment by itself does. Adopting the latter mode of thought, we are free to think of a business loan as having, by itself, just the Edition: current; Page: [369] same function as any other loan—to even up the income stream in accordance with the principles of impatience.
The Theory of Interest
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