Such bargains will always be made so long as both parties are benefited, for no possible construction of laws and no diatribes of fanatics can prevent them. Any calculation as to the enormous growth of wealth by interest is more than balanced by a similar calculation of the multiplication of wealth by production. If Abraham’s shekels at compound interest make an impossible sum of money, Abraham’s flock of sheep with the ordinary rate of increase makes an equally impossible worldful. _Varying rates of interest._—Interest rates are subject to fluctuation and variations under the natural relations of borrowers and lenders very much as are prices of commodities. Variations, in comparison of different regions, are due to several causes. In any community where enterprise is great and industrial forces are unusually productive, the interest rates are high as compared with another community with few competitors in industrial enterprise and less productive forces. Thus in countries having new land producing large crops with moderate exertion and an increasing population ready to put in such crops, the return for the use of capital in provisions, stock and machinery is great, and the lender gets high rates of interest. If, added to this apparent productiveness, there are risks of failure from droughts, storms and injurious insects, the bargain is more favorable to the lender in expressed terms, though it may be less favorable in actual results. Thus risk enters practically into calculations of interest, whatever the circumstances. Interest varies in the same region with a variation of energy and productive enterprise or of the speculative spirit undertaking great improvements, and on the other hand with any change of circumstances affecting universal credit. Distrust on the part of anybody reduces the readiness with which borrowers find lenders. In times of widespread lack of confidence, when all credit becomes debt, the borrower is likely to offer unusual rates of interest. And the few who are willing to lend at all expect enormous profits in such interest.