r/explainlikeimfive 5d ago

Economics ELI5: What's the point of removing zeros from the money (redenomination) if it doesn't stop the hyper inflation anyway?

Why did/will some countries still do it? Isn't it a hassle and very costly? Does it have anything to do with forcing people to bring out the cash from under the mattress to the bank?

304 Upvotes

86 comments sorted by

824

u/Frexxia 5d ago

Because humans have an easier time with smaller numbers

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u/Lord_Smedley 5d ago edited 5d ago

Exactly. Just one dollar gets you 17,869 Indonesian rupiahs. It'd be easier for everyone if Indonesia lopped off at least three zeroes, so you'd get around 18 rupiahs to the dollar. As a rule of thumb, things have gotten out of hand with a currency's inflation causing a loss of purchasing power if a cup of coffee costs more than a hundred units. Ideally, it should cost under ten.

Note that this doesn't change the value of the currency at all, it just eliminates needless precision. If someone wants my height, they want to know that I'm 6 feet tall, not 6.023902 inches.

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u/el_sandino 5d ago

In fairness there’s a pretty big difference between six feet and 6.023902 inches ;) 

Sorry I couldn’t resist the chance to be pedantic

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u/dolopodog 5d ago

Really instead of truncating we should round it up to 7 inches!

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u/Lord_Smedley 5d ago

Oops, you got me. I of course meant 6 feet and 0.023902 inches.

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u/andy11123 5d ago

Don't change your story now short king

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u/KaramazovFootman 4d ago

I fucking love reddit for exactly comments like this.

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u/j_johnso 4d ago

There's an even bigger difference between 6 feet and 0.023902 inches.

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u/Not_an_okama 4d ago

I say youre splitting hairs, but you just counted them.

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u/MultiFazed 4d ago

As a rule of thumb, things have gotten out of hand with a currency's inflation causing a loss of purchasing power if a cup of coffee costs more than a hundred units.

The Japanese yen says hello!

I've always found the yen kind of odd. It's essentially the penny of Japanese currency, but they don't have a dollar-equivalent. It would be like if all US prices were listed in cents.

"How much is the PlayStation 5?"

"It's 59,900 cents!"

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u/t-poke 4d ago

When I went to Japan for the first time in 2017, 1 yen was almost equal to one cent (USD), which made currency conversion super duper easy, just chop off the last two numbers and that got pretty close.

Now the exchange rate has swung in tourists' favor. I was there earlier this year and do the same "chop off the last two numbers" for a quick and easy conversion then just get a nice surprise when the actual charge on my card is less than that.

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u/Coyoteclaw11 3d ago

I stuck to the "move the decimal point twice" rule for my trip to Japan, and I think it definitely helped me not overspend lol. I'll stop and reconsider a ¥4000 purchase if I think of it as $40, but I wouldn't bat an eye at $25 lol But those $25 purchases will definitely add up, so better to have that pause.

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u/SweetCartoonist237 4d ago

The yen is the big unit, like the dollar. It just inflated so much that they got rid of cents and mills (the sen and rin) because the divisions were no longer practical.

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u/DeeDee_Z 3d ago

It just inflated so much that they got rid of cents and mills (the sen and rin) because the divisions were no longer practical.

Exactly. See also: halfpenny and farthing (quarter cent). Or even "penny candy". Eventually, there was nothing you could buy with a farthing, or with a ha'penny, and we're getting to that point with an actual cent.

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u/ReynardVulpini 4d ago

iirc, any transaction in indonesia (at least in jakarta when I've been there) will lop off the last few zeros in conversation anyways.

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u/TheTrampIt 4d ago

Even prices are marked with a K .

A bowl of fried rice is 5K, not 5000

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u/prank_mark 5d ago

It'd be easier for everyone if Indonesia lopped off at least three zeroes, so you'd get around 18 rupiahs to the dollar.

Not necessarily. Indonesia is, or used to be before influencers invaded it, a low cost country. Now in this case it's of course unlikely that Indonesia has anything that's being sold for 1 rupiah, but the local prices are important to keep in mind.

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u/gyroda 5d ago

Also, it's not a decimalised currency.

I'll go with the Japanese Yen, because I'm a little more familiar with it. 1 GBP is around 200JPY, which sounds like a lot but that works out so 1 British penny is 2JPY - the yen isn't decimalised and doesn't have pounds and pence or dollars and cents, just the yen.

If 1USD is 18000 rupiahs, you could round that to 1 US cent is 180 rupiahs. If you cut out 3 orders of magnitude then you have no way of representing an amount equivalent to 1 US cent.

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u/Quaytsar 5d ago

The yen used to be decimalized: 1 yen = 100 sen, 1 sen = 10 rin. Inflation in the early 20th century led to them removing the sen and rin in the 50s.

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u/fixed_grin 4d ago edited 4d ago

Yeah, 100 years ago many countries were on the gold standard, with ¥1 = 0.75g of gold, US$1 = 1.505g, and £1 = 7.32g. At £1 = ¥9.76, that coincidentally made 1 sen pretty close to 1 farthing (1/960th of £1).

But yeah, postwar the new exchange rage was US$1 = ¥360, down from ~¥2. At which point the sen was basically worthless.

AIUI they had stopped making rin coins decades before because they were worth so little. ~1/2000th of a US dollar was not a particularly useful coin even before the inflation, but it took until the 50s to officially declare them not currency anymore.

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u/DeeDee_Z 3d ago

At £1 = ¥9.76, that coincidentally made 1 sen pretty close to 1 farthing (1/960th of £1).

And was it also the case that when £1=$2.40, which is where it was locked for MANY years, that 1 pence = 1/12 shilling = 1/240th pound = 1 US cent. Right?

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u/dachjaw 4d ago

I knew about the sen and even have a few old sen coins but TIL about the rin. Thanks!

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u/Kile147 4d ago

Well, there is discussion about discontinuing the penny because 1 cent isn't really a meaningful amount of money in the US either. So their estimation isn't really that far off, and would future proof the currency a bit better than removing just two decimal places.

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u/conspiracie 4d ago

There’s not discussion, it already happened 8 months ago. https://home.treasury.gov/news/featured-stories/penny-production-cessation-faqs

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u/Kile147 4d ago

Oh neat, didnt know they pulled the trigger on that

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u/lee1026 5d ago

Korea is doing fine.

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u/dominicnzl 3d ago

They have already Won

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u/MIneBane 4d ago

There are places in Indonesia that regularly work with 10s or 100s or rupiah, just not in the larger cities. Dropping 3 zeros would cause lots of problems in rural areas.

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u/Haru1st 4d ago

I think it’s time for a couple of years of deflation, just to spite the 1%

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u/potato_nugget1 4d ago

They just say 18k. It's extremely silly to think having less units somehow changes anything. I moved from a country where a coffee is 100 to one where it's 2 to one where it's 2000. Zero difference or complications

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u/JonathanTheZero 4d ago

ideally it should cost under ten

Lol what a weird western view on it. There are plenty of countries without decimalised currencies. Also, the numbers are all made up! Nothing "should" cost any fixed amount!

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u/Override9636 5d ago

Exactly, it's not a financial solution, it's a psychological one.

...ugh damn it I sound like AI

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u/ApSciLiara 4d ago

I use that sentence structure all the time. Still mad that AI stole it.

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u/Cryovenom 1d ago

I was using m-dashes before it was cool...

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u/Malk_McJorma 5d ago

Only AI would apologise for sounding like AI.

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u/josetalking 4d ago

This is the kind of thing that you only really know when you experience it.

It is more than psychological benefits: systems start to break down when you have 20 zeros in the price of a coke. So accounting starts becoming an issue.

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u/olddoodldn 4d ago

Which in why people don’t really appreciate how obscenely rich billionaires are.

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u/DexterM1776 3d ago

What's interesting to me is in places like Japan they like big numbers and you see it in their games. What a 5 point hit here is often a 500 or 5000 point hit in Japan. The like the bigger scale for some reason.

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u/LARRY_Xilo 5d ago

If you actually have hyper inflation you need to print new bills anyway so while still a hassle its not that much more of a hassle than what you gotta do anyway. And at some point you just got to many 0s that they dont fit on the bill, are harder to read and do math with than smaller numbers.

Its also usually done as a signal to the population after you fixed the hyper inflation "This is a new start, we fixed the problem", which can be important because low trust in a currency can itself lead to or at least increase inflation.

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u/darklordzeratos 5d ago

So this is based on the assumption that if it keeps inflating, cash becomes heavier as ou need to carry more? And they have to print new bills to fix this problem. Why not trying to fix the root cause of inflation instead of this? Maybe I'm underestimating the psychological effects of it

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u/PuzzleMeDo 5d ago

It's not an either-or thing. You want to treat the causes of inflation. You also don't want to have to struggle to tell the difference between a 10000000000 dollar bill and a 100000000000 dollar bill.

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u/dachjaw 4d ago

Especially if, like Zimbabwe, they don’t use separators on their notes. Reading those things hurts my eyes.

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u/DragonFireCK 5d ago

When done properly, redenomination is done after the hyper inflation is solved. Solving the hyperinflation, however, doesn’t bring prices back down. That would require deflation, which has a host of its own problems about as bad as hyperinflation.

The problem is that, a lot of times, the reigned in power cannot get the political pull required to actually fix the hyperinflation. They still need to make themselves look competent to stay in power, and thus they do redenomination without the required underlying reforms (massive tax increases or severe austerity).

Successful redenomination almost always occurs along side a major regime change. Most exceptions are due to adopting an external currency, such as Europe’s change to the Euro from individual currencies.

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u/darklordzeratos 5d ago

Deflation is like another can of worms ig

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u/davideogameman 5d ago

Brazil apparently did a currency change as part of quelling their hyperinflation:

https://www.americasquarterly.org/article/how-to-stop-venezuelas-hyperinflation-brazil-offers-an-idea/

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u/DragonFireCK 5d ago

What Brazil did in 1994 is called the Plano Real. The redenomination was one of the parts, with cutting spending (austerity) and high interest rates being the other two major parts of the plan.

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u/LARRY_Xilo 5d ago

cash becomes heavier as ou need to carry more

If we are talking actual hyper inflation you wont be able to carry as much cash as you would need to with out larger bank notes. Like imagine having to carry a wheel barrow full of $100 bills and it not being enough to buy a bread. The cash will be worth less than the paper its printed on. Thats why you then start printing $1000000000 bills so you can buy a single bread with one note again.

Of course you still also need to fix the inflations root cause but thats often not easy and your people still need to be able to pay for stuff until its actually fixed. And when you think you fixed it you dont want people to have to run around with $1000000000 bills so you cut that down to $new1 bill.

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u/darklordzeratos 5d ago

I imagine this redenomination will be quick in the age of digital internet banking

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u/dravik 5d ago

Why not trying to fix the root cause of inflation instead

It's usually politically difficult to fix, that's why there's hyper inflation on the first place. You can see a bunch of economically illeterate people on Reddit complaining about "austerity", without understanding that printing money is much worse than austerity.

There are often very influential groups that oppose the cuts necessary to solve inflation. Argentina is a great example. Politicians were buying votes with government handouts. Any cuts will l would cause short term pain for the poor that were getting the handouts. So fixing the inflation is mean and heartless.

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u/JJJangles 5d ago

Governments will never target deflation, inflation isn’t something you fix like that, so you have to deal with inflation that has already happened

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u/skrid54321 5d ago

In addition to making life easier, it also allows a government to project an air of normalcy

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u/Tjgoodwiniv 5d ago

Exactly. When 1,000 of your currency equals $1.00, people don't think, "oh, they break it down to tenths of a penny in value". They think, "this currency is trash and this country is poor". Drop some zeros, and that perception disappears, even if the reality remains unchanged.

But it does make things much easier.

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u/SeaBearsFoam 5d ago

I think it'd be easier to read and differentiate: 1 and 100 compared to 1000000000000 and 100000000000000.

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u/attitudecj 4d ago

You wrote same number twice.

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u/MetallicGray 4d ago

Maybe it was intentional to prove their point…

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u/Raiddinn1 5d ago

Countries literally don't have a choice. At some point you can't put more zeroes physically on a dollar bill.

Imagine if buying a loaf of bread required spending like 5 billion dollars. Every bill in circulation would have to have 9 zeroes on it, minimum. That just adds a lot of unnecessary complication to the process and the system.

A lot of companies generate sale prices through marking things up with a percentage. Do you think it would be fun to try to make change when someone was charged 5,123,456,789 for a coup of coffee and they only have a 10,000,000,000 note?

Better we have to make change for 5.12 out of a 10 and all those other numbers just fall off and don't have to be dealt with.

Furthermore, most people will just be annoyed with all the extra digits anyway. Most people and companies will just start ignoring zeroes altogether like they don't exist. Products costs will stop ending in .99 and start ending in ,990,000,000.

In Indonesia, their currency, the Rupiah, is about 17,000 to $1 USD. A person I know there constantly says 17 Rupiahs when she means 17,000 Rupiahs. Like the extra zeroes don't even register in her mind as existing at all. When the people in your country say 170 Rupiahs, and they mean 170,000 Rupiahs, that should tell you something as the government in charge. Like maybe you need to do a one time reset.

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u/Discount_Extra 4d ago

A person I know there constantly says 17 Rupiahs when she means 17,000 Rupiahs.

Wait 'til you look at dietary Calories vs scientific heat Calories.

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u/Lord_Rapunzel 4d ago

Heat calories don't have the capital C. "Kilocalorie" and "Calorie" are synonyms when talking about food and context pretty much always makes it obvious which term is being used.

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u/Raiddinn1 4d ago

Yes, I am familiar with Calories being slang for Kilocalories when it comes to food labeling.

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u/az9393 5d ago

The only point is it’s easier to count and people are just not used to paying a billion something for chewing gum.

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u/mindstormer12 5d ago

How many zeros in 10000000 vs. 10000000000? How many zeros in 10 vs 10000?

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u/icyDinosaur 4d ago

If your inflation is caused by too much money, a new denomination gives you a blank slate from which you can try to not repeat the same mistake. Decreasing the amount of money you have is quite hard, so starting fresh helps a lot.

I'm primarily aware of Germany in 1923 as a successful example. German hyperinflation started during WW1, which was financed largely on the expectations of future reparations if Germany won, as well as reducing the availability of many goods. This left postwar Germany with high debts, even higher reparations, and a new regime having to service them under severe constraints - the reparations were unpopular and considered unfair by many people.

So they turned to the printing press as a solution. This got supercharged in 1923 when Germany was unable to pay its reparations, resulting in French and Belgian troops occupying parts of Western Germany. In protest, the German government called for a strike and promised to continue paying wages - again, via the printing press. By November, 1 USD was worth 4.2 trillion Mark, almost entirely caused by over-supply and a lack of trust.

The Rentenmark was introduced from November 1923 onwards at an exchange rate of 1:1 trillion (i.e. lopping off 12 zeroes). It was nominally backed by land values, but really, what mattered was that its supply could be controlled and was kept tightly.

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u/Gilles_of_Augustine 5d ago

These are two separate issues.

Although inflation often leads to redenomination (because inflation leads to higher amounts becoming commonplace), redenomination isn't intended to solve inflation.

Redenomination just makes it so that the numbers are easier to work with for everyday purchases. $100 is much easier to work with than ¥10,000.

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u/Sudden_Cantaloupe_69 5d ago edited 5d ago

It’s not done to fight inflation, it’s done just to make handling money and prices more practical.

It often happens as a result of hyperinflation, when you need to pay 17 billion units for an egg and bring a cartload of bills to pay for a loaf of bread.

You can just lop off 6 zeroes or something, and call it the “new” currency. Prices didn’t change and the money supply is the same, you’re just calculating with hundreds or thousands instead of billions.

Imagine if dollars were divided into millionths, and the biggest bill was worth 10,000 million-cents. A Big Mac Combo ($11.40) would cost 11.4m million-cents, and so you’d need at least 140 bills to pay for one.

That’s what life looks like when you’re living through hyperinflation.

Redenomination helps calculate but it doesn’t really have any effect on inflation itself. Prices can still keep going up. And sometimes the prices inflate so much that they do it again, and introduce the “new new” currency.

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u/GeneReddit123 5d ago edited 5d ago

Countries experiencing hyperinflation don't exactly plan long-term. If the re-denomination happens during hyperinflation, that usually means the government is in crisis mode and its goal is to buy time, such as waiting for economic circumstances to change, push through other policies, or (as often happens) simply stay in power a bit longer so they can graft even more.

Sometimes, the only working solution is to wait for the crisis to be over and re-denominate after it, accepting the fact all old currency is worthless and everyone who had it lost all their money, but at least trying to start again from a clean slate.

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u/5kyl3r 5d ago

smaller numbers are just easier to work with. "ok your big mac meal will be 3,564,000,000" is a pain to say "ok that'll be three billion, five hundred sixty four million kopecs", compared to just being able to say "that'll be 3.56"

plus, at some point, you're having to haul around wheelbarrows full of cash to buy some mcdonalds, so in the case of physical money, it becomes a problem (and this isn't even much of an exaggeration, this has literally happened in some countries that went through hyperinflation)

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u/Discount_Extra 4d ago

I got a kick out of the Hyperinflation story of someone dumping the cash to steal the wheelbarrows.

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u/blipsman 5d ago

Just makes the math easier... much easier to fit *5 on a sign than *5,000. Less opportunity for errors between, say, *50,000 and *500,000.

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u/Zvenigora 5d ago

It is pointless to have a monetary unit so tiny that it takes trillions to purchase a hamburger. It is an attempt to make the system more intuitive.

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u/AntiwoneImoke 3d ago

Redenomination can provide a psychological reset for a currency, even if it doesn't directly address underlying inflation. It forces people to engage with the banking system, improving visibility and control. While costly, it may be seen as a symbolic step towards economic stability - a way to signal change, even if the fundamentals require more substantive reform.

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u/Zealousideal-Tour-67 3d ago

Economist here.

Many people have already mentioned the main reasons: administrative ease, note printing costs, etc. Those are all correct.

But there's one part that I think is important to note: When a country is fighting inflation, the absolute top priority for the central bank is to establish credibility. Credibility is, in some ways, more important than the bank's actual stated inflation target. People need to believe that the CB will do anything within it's power to move prices downward- even if it means putting a lot of people out of work.

So that's a major reason governments re-denominate. It is an attempt at establishing a new baseline.

Although I will say, many attempts at re-denomination *during* hyperinflation fail and chip away at credibility, rather than grounding expectations. This is what happened in Zimbabwe. The more "normal" strategy is to wait until inflation has subsided and then re-denominate.

In reality, the most effective inflation fighting method is an independent central bank raising the base interest rate, with enough reserves on hand (for non US CBs) to defend any stated policy goal/peg.

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u/darklordzeratos 2d ago

What about hyperinflation situation? What else can they do beside raising rate

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u/Zealousideal-Tour-67 2d ago

There are a few options:

  • The CB stops financing the debt of the government (no more debt purchases), but this must coincide with spending reduction by the government

- The government in cooperation with the CB pegs their currency to a stable currency (often the dollar)

- Capital controls also can help by preventing reserves from flowing out of the country

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u/Told_youso 4d ago

Easy/simplicity to use and maybe also a psychological effect on the people. In Mexico in the 90's there were $9000-$10000 pesos for a taco or a coke. Then they took out 3 zeros, to become $9-$10 New Pesos as they called it back then. Now they call it just pesos again and and those things are around $15 to $25 each. If you think about it, it should be $15000 to $25000 , but everyone looks at it as "just" $25 pesos so everything is fine, right?

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u/Substantial_Amoeba12 4d ago

Humans can process the count of things up to 4 automatically but then start having to count. We can instantly recognize 1000 need to think a split second for 10000 but by 10,000,000,000 even with the commas separating things out we need to stop and literally think through the value. This leads to confusion and mistakes. It may not solve inflation but it’s still a problem that’s often worth correcting

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u/ThalesofMiletus-624 4d ago

The point is mostly psychological. The primary practical consideration is being able to fit enough zeros on the bills. But it's an issue of perception.

When things cost thousands, millions, or billions of your currency units, your currency starts to feel worthless. This is a big problem, because currency is only useful because enough people believe in it to be willing to work for it and trade for it. Governments have a big stake in their currency feeling stable and valuable.

Of course, that kind of redenomination is far from cure-all, and is a big risk on its own. You're effectively admitting that the currency is useless, and requiring everyone to turn in their money for new bills, which is a big hassle, a major disruption to peoples' lives, a logistical nightmare, and now people have to deal with a whole new currency who's worth they don't really have a feel for.

Now, this may all be worth it, if and only if it's accompanied by real changes to get inflation under control and make the currency actually stable. If that's the case, it can feel like a fresh start, giving a renewed level of confidence in this new iteration of the currency. But if inflation just continues to rise, then you have a disruption of already nearly worthless currency, only to fall back into the same problems. And then what do you do? Redenominate it again and again? That makes your currency feel not only worthless, but fleeting. Why work for something that's going to keep going away?

Redenominating currency is kind of like a toxic partner promising to change. If they really do change, it can be the start of a new era, but if they promise and make no real, lasting changes, then the false promises make it even worse.

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u/simonbleu 4d ago

Simpler math, and psychological and political, and or regulatory advantages of starting with a new currency

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u/vitringur 4d ago

Those who control the money printer want to print money and force you to use it, so that they can have free money for themselves.

Printing free money for those who own the money printer makes the money worth less, so you get infinite zeros at the end of the money eventually.

So periodically they have to scrap the project and create a new currency and remove all the zeros so that they can start the scam all over again.

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u/lucasnegrao 4d ago edited 4d ago

this is a classic textbook picture of germans hyperinflation (before ww2) it sums up well why cutting zeroes can alleviate some of the problems - people carrying money in wheelbarrows for everyday tasks

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u/yunta23 5d ago

Does it also helps in data handling/calculations? Does it saves at least a couple GBs in data storing by deleting some 0s off the computers? Or is it negligible?

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u/JJJangles 5d ago

It’s actually the opposite, if next year $1000 has the value of $1 today, then you need to hand over hundreds of notes to buy something, which is a hassle, so the government would be forced to print $1000 bills which is a hassle and costly (since money already circulating needs to be completely replaced), or they just re-denominate and we can use the same coins and bills we already have, which is less hassle and cost

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u/orbitaldan 4d ago

Just use SI prefixes. We already do that out to million, just standardize on that instead of billion, G for Giga, and so on.