“As a rule, however, an increase in the value of money spreads only gradually. The first of those who have to content themselves with lower prices than before for the commodities they sell, while they still have to pay the old higher prices for the commodities they buy, are those who are injured by the increase in the value of money. Those, however, who are the last to have to reduce the prices of the commodities they sell, and have meanwhile been able to take advantage of the fall in the prices of other things, are those who profit by the change.”