What Ended the German Hyperinflation?

201 billion marks. That's what a kilo of rye bread cost in Berlin in November 1923. Within a month, prices across Germany had stopped rising, and nobody had found gold, borrowed dollars, or paid off a single debt. Five days after the new money appeared, the man whose signature had been printed on the Reichsbank's notes since 1908 dropped dead of a heart attack. He'd held the job for life. It was the only reason he still had it. And by the time he died, the job had already been routed around him. Ask around, and you get the same explanation for what ended the German hyperinflation, and it's a sensible one. The government finally turned off the printing presses. Money stopped flooding in, so money got its value back. Cause, effect, done. That is not what happened. You can see it isn't just by looking at who was on the central bank's payroll. At the end of 1902, the Reichsbank employed a little over 13,000 people. A year later, it employed almost 23,000. It had nearly doubled in size, and the new staff weren't there to manage anything. They were there because printing money had turned out to one of the biggest industrial operations in the country, and the bank still couldn't keep up with the demand for zeros. That machine did not switch off in November 1923. It couldn't. Take away the press, and the German government had almost no other way to pay for anything at all. So here's what actually happened, and it starts with a man in a cupboard. On the 12th of November, 1923, a banker named Thomas Schacht was handed a job title that had never existed before, currency commissioner. By Liaquat Ahmed's account of the period, his office was a converted broom closet in the finance ministry. Across town sat the Reichsbank in its enormous red sandstone building, still printing. For about five weeks, Germany had two central banks, and the one that worked was in a closet. Three days after Schacht got the job, the new money appeared. It was called the Rentenmark, and it wasn't backed by gold. Germany didn't have gold to spare. It was backed by a mortgage on German farmland, factories and shops, a claim on the country's dirt. Nobody could ever have collected on that. You couldn't walk into a bank holding a banknote and be handed a field. Economists have described the backing as fictitious ever since, and they're right. Then came on the part that looks like a magic trick and isn't. One Rentenmark was declared equal to one trillion old marks, 12 zeros crossed out. But crossing out zeros doesn't destroy money. It settles the argument about who ends up holding it. Every mark that lost its value went somewhere. A man who borrowed enough in 1921 to buy a house could clear that mortgage two years later with the coins in his coat pocket, and whoever lent him the money got the coin. German savers paid for the entire inflation. Everyone who owed money walked away almost free, starting with the government, which owed the most of anyone. That's the thing people mean when they say savings were wiped out. They weren't wiped out. They were handed over. And that transfer is a big part of why a hyperinflation is so hard to stop once it starts. At every stage, somebody is winning, none of which explains why anyone agreed to accept the replacement. What made the new money hold wasn't the dirt. It was a sentence in the decree that created it. The law put a hard ceiling on how many Rentenmarks could ever exist, and a much lower ceiling on how many of them the government was allowed to borrow. That limit was published at a moment when essentially every mark the government spent was coming straight off a press. On paper, it was impossible, and then the government kept it. In December, the cabinet came asking for more and got refused. Meanwhile, one in four state employees was fired by decree. Taxes were tied to inflation so nobody could profit by paying late, and by January, the German budget balanced. None of this was popular. All of it was visible. Now the man in the sandstone building, Rudolf Havensteinstein had run the Reichsbank since 1908, appointed for life, which in practice meant nobody could remove him. He believed to the end that rising prices came from abroad and that his job was to supply whatever money the economy asked for. On the 20th of November, five days after the Rentenmark appeared, he died of a heart attack. Shock took his chair a month later, and the Reichsbank's own board didn't want him. The British ambassador in Berlin cabled home that December that the bank had voted unanimously for Karl Helferich is instead a man the ambassador described as the same cable as the chief advocate of inflation during the war and its main supporter ever since. The institution hadn't changed its mind about anything. It had been overruled, which brings us to the thing that shouldn't be possible. The presses never stopped. The Reichsbank quit lending to the government, but it went right on printing for private businesses. And in the months after prices settled, in the month after Sinnel Bank money kept growing, not drifting up, growing fast, the economist Thomas Sargent found exactly the same pattern in Austria, Hungary, and Poland. In every one of those countries, the note circulation went on expanding after the inflation had already ended. More money in circulation and money worth more at the same time. The reason is that people were never really pricing the number of banknotes. They were pricing a guess about the future, and the guess was about one thing only. Could this government ever pay its bills without printing? While the answer was no vote, every mark was a claim on nothing. Once the answer changed, the same paper was worth something, and it stayed worth something even as more of it turned up. Not everyone reads it that way. Sargent's version that what changed was a credible shift in the rules is the standard account, but other economists give weight to the hard limits themselves, to how close the German state was to simply falling apart. Popular accounts of that month give wildly different prices for bread, which isn't surprising. In the government's own price table, the Berlin bread column changes its unit twice inside three months. Millions in October, billions in November. The figure I opened with is one month's average of something that never held still for a day. There wasn't a price. There was a moving target. Here's my opinion, and it's the part worth arguing with. I don't think the Rentenmark deserves most of the credit it gets, and I don't think Schach does either. Germans called it the miracle of the Rentenmark. The miracle was a banknote backed by a mortgage on land nobody could ever seize issued out of a broom closet, circulating next to a currency that was still being printed with it. What actually did the work was the dullest thing in the story. A government sacked its own civil servants by decree, indexed its taxes, wrote itself a limit, and then didn't quietly raise it. We credit the banknote because a banknote is something you can hold up to a camera, a rule you can't break photographs badly. Schach, for his part, spent the rest of his life on the reputation. He ran the Reichsbank, again under Hitler, served as economics minister, and was tried at Nuremberg, where he was acquitted in 1946. And the same machinery is sitting under your own bank account. In the United States, your deposits are insured by the FDIC up to a limit. At the end of 2025, the fund behind that promise held a little over $1.40 for every $100 it guarantees. That isn't a scandal. It's the design. The fund is built for a handful of banks failing, never all of them at once. And it works, genuinely works, because almost nobody ever tries it, which is the lens worth keeping. We tend to picture money as something held up by what's sitting in a vault. Mostly, it's held up by a promise that's easier to believe than to check. Germany in 1923 hadn't run out of paper. It had run out of people willing to take the promise on trust. And it got the trust back a long time before it got anything real to...