Hyperinflation Is a Fiscal Event Wearing Monetary Clothes
Weimar Germany and Zimbabwe are the standard examples, and in both cases the printing was the mechanism rather than the cause. The cause was a government unable to fund itself any other way.
The Definition
Economists conventionally define hyperinflation as inflation exceeding fifty percent per month, which compounds to enormous annual rates. It is qualitatively different from high inflation rather than simply more of it.
The distinction matters because the behaviour changes. At moderate inflation people complain and adjust slowly. At hyperinflation, holding the currency for even a short period imposes visible loss, so everyone spends immediately on receipt, which increases velocity and accelerates the process further.
The Common Cause
Every well documented hyperinflation shares a fiscal origin. A government has obligations it cannot fund through taxation, and it cannot borrow because lenders will not extend credit at any acceptable rate.
In Weimar Germany the pressures included reparations obligations denominated in foreign currency and gold, alongside the loss of productive capacity during the occupation of the Ruhr. Domestic money creation cannot produce foreign currency, so the attempt to meet external obligations through the printing press collapsed the internal currency.
In Zimbabwe the sequence involved collapsing agricultural output, sharply falling tax revenue, and continued government spending funded by money creation.
Central banks do not decide to destroy their currency. They are directed to fund a government that has run out of other options, which is why central bank independence exists.
Why Expectations Take Over
The initial money creation causes inflation, which is straightforward. The acceleration comes from expectations.
Once people expect prices to rise rapidly, they act on it. Workers demand more frequent wage adjustments, sellers price ahead of expected costs, and holders of currency convert immediately into goods or foreign money. All of this increases the velocity of money, meaning the same quantity of currency changes hands more often, which raises prices independently of any further printing.
The government then finds its real revenue falling, because taxes are collected with a lag and are worth less by the time they arrive, so it prints more to cover the shortfall. That loop is what converts high inflation into hyperinflation.
How They End
Historically, hyperinflations end abruptly rather than gradually, and the resolution is always fiscal.
The pattern involves credible commitment to stop financing deficits with money creation, usually alongside a new currency, genuine central bank independence, and frequently an external anchor such as a peg or adoption of a foreign currency. Zimbabwe ultimately abandoned its currency in favour of foreign ones for a period.
What matters is credibility rather than technique. Because the process is driven by expectations, a regime change that people believe will hold can stabilise prices remarkably quickly, sometimes within weeks.
What It Is Not
It is worth being precise, since the term is used loosely. Large scale central bank asset purchases in developed economies did not produce anything resembling hyperinflation, because those operations were not financing a government unable to borrow.
Governments with credible tax systems, deep bond markets, and independent central banks are structurally different from the hyperinflation cases. Predictions to the contrary have been made repeatedly for decades and have not been borne out.
The Bottom Line
Hyperinflation happens when a government cannot fund itself and the central bank is made to fill the gap. It ends when that arrangement credibly stops, which is why independence is a fiscal safeguard rather than a technical detail.