Hyperinflation

Hyperinflation is a very high and accelerating form of inflation. It occurs when the prices of goods and services increase at an extremely rapid rate. This process quickly erodes the real value of a country's local currency. As prices rise, the money people hold loses its ability to buy things.

Because of this, people often try to minimize their holdings in the local currency. They frequently switch to more stable foreign currencies to protect their wealth. This process of using a foreign currency instead of the local one is called "dollarization."

To understand how this works, we must look at the relationship between money and prices. In a hyperinflationary environment, the supply of money grows very quickly. However, the production of goods and services does not grow at the same rate. This imbalance causes the price level to rise. Interestingly, the price level often rises even faster than the money supply itself.

This happens because of the velocity of money, which is the speed at which money changes hands. When people fear their money is losing value, they spend it as fast as possible. This rapid spending drives prices even higher, creating a vicious circle.

Economists use specific rules to identify when hyperinflation is happening. In 1956, a professor named Phillip Cagan published a major study on the subject. He defined a hyperinflationary episode as starting when the monthly inflation rate exceeds 50 percent. For the episode to end, the monthly rate must stay below 50 percent for at least one year. This math means that prices could increase by 12,874.63 percent in a single year.

The International Accounting Standards Board also looks for certain signs. These include people preferring non-monetary assets or linking wages and prices to a specific index.

Most hyperinflations are caused by government budget deficits. A deficit occurs when a government spends more money than it collects through taxes. If a government cannot borrow money or cut spending, it may choose to create new money to pay its bills. This is often called "monetizing" the deficit. Peter Bernholz analyzed 29 hyperinflationary episodes following Cagan's definition. He found that at least 25 of them were caused by financing deficits through currency creation.

This is much more common with fiat currency, which is money not backed by a physical commodity like gold.

Other factors, such as wars and social upheavals, can trigger these economic crises. During a war, a government may have a massive need for spending on armaments. At the same time, it becomes much harder to collect taxes or borrow money from others. This can lead to a rapid expansion of the money supply to fund survival. For example, the Chinese Nationalists experienced hyperinflation from 1939 to 1945 due to civil war costs. In that case, currency had to be flown in over the Himalayas to keep up with demand.

The effects of hyperinflation on a society are profound and often destructive. It wipes out the purchasing power of both private and public savings. This makes it very difficult for people to plan for the future. In extreme cases, the local currency becomes almost worthless. In 1923 Germany, banknotes lost so much value they were used as wallpaper.

In Hungary in 1946, the government printed a 100 quintillion pengő note. They even printed a 1 sextillion pengő note, though it was never actually issued.

Solving hyperinflation is a difficult task for any government. One method is to implement effective capital controls or currency substitution. However, these solutions often come with significant social and economic costs. Some governments try to solve the underlying structural issues slowly to avoid economic shocks. This approach can sometimes lead to a very long period of high inflation. If a government fails to reform its currency in time, it may eventually have to legalize the use of stable foreign currencies to allow the economy to function again.