At first, when prices rise, people say: “Well, this is abnormal, the product of some emergency. I will postpone my purchases and wait until prices go back down.” This is the common attitude during the first phase of an inflation. This notion moderates the price rise itself, and conceals the inflation further, since the demand for money is thereby increased. But, as inflation proceeds, people begin to realize that prices are going up perpetually as a result of perpetual inflation. Now people will say: “I will buy now, though prices are ‘high,’ because if I wait, prices will go up still further.” As a result, the demand for money now falls and prices go up more, proportionately, than the increase in the money supply. At this point, the government is often called upon to “relieve the money shortage” caused by the accelerated price rise, and it inflates even faster. Soon, the country reaches the stage of the “crack-up boom,” when people say: “I must buy anything now—anything to get rid of money which depreciates on my hands.” The supply of money skyrockets, the demand plummets, and prices rise astronomically. Production falls sharply, as people spend more and more of their time finding ways to get rid of their money. The monetary system has, in effect, broken down completely, and the economy reverts to other moneys, if they are attainable—other metal, foreign currencies if this is a one-country inflation, or even a return to barter conditions. The monetary system has broken down under the impact of inflation.
This condition of hyper-inflation is familiar historically in the assignats of the French Revolution, the Continentals of the American Revolution, and especially the German crisis of 1923, and the Chinese and other currencies after World War II.
— Murray Rothbard; What Has Government Done to Our Money?