If you know a $100 item will probably cost $102 later then you're more likely to buy it now. But if that item will cost $98 in a deflationary environment, then maybe you'll wait to buy it later. Wages also tend to fall in deflation, which makes it harder to pay back debt, so lending slows down - people won't buy houses or cars, etc. Businesses hold back on capital spending. The economy slows to a standstill: if no one is spending money, how can anyone make money?
And debts adjust their rates along with inflation/deflation so that effect ends up much smaller.
As for houses and cars, we desperately need to make the economy less focused on the value of houses and cars...
There are other monetary schemes that allow for negative nominal rates (100% reserve-backed lending, a.k.a. The Chicago Plan, or the gold or silver standard, etc.), and in those one does not need steady inflation. There was basically no inflation for most of the 19th century, when most currencies were backed by gold or silver. That had other drawbacks: for example, a relative inability to control the money supply. An expanding money supply following the California gold rush helped fuel speculation during the railroad boom, and the inability to expand the money supply on demand exacerbated the ensuing panic of 1873. Governments at the time did not believe it was their job to dampen the impacts of the business cycle, however.
One mechanism of inflation is that it effectively lowers wages (and other contracts) without negotiation. Asset prices are valued by markets and increase with inflation. It effectively transfers wealth from wage earners to capital owners.
Deflation would effectively increase wages instead, and require occasional renegotiations if productivity isn't keeping pace.
I think the argument from symmetry still holds, but it leads into a different conclusion. Since products (goods, physical assets) depreciate in value over time, money must too decrease in value. Hence you get inflation.
I believe that "natural rate of inflation" is driven by natural depreciation of goods and the free market mechanism that exchanges money and products as you describe.
I'm hand-waving a lot of arguments and considerations with this statement, but from my perspective one advantage to 2-3% inflation is to incentivize owning capital that will outpace inflation. Land, equity, and bonds all have that potential.
Deflation may incentivize renegotiation of labor, but it also incentivizes hoarding of cash, which itself is not otherwise valuable. The value comes from it being passed around through the economy buying more assets. The more purchases -> the more money to be passed around -> the more opportunity to grow the economy. In a deflationary environment (at least in theory) this slows all of that down and decreases economic opportunity, which we generally don't want.
Zero inflation even as a target would be hard to hit, as it would imply some absolute perfect match of supply/demand for goods.
Deflation leads to the opposite behavior - hoard your resources, don't invest, don't lend, don't hire. This then cascades through economy in a downward spiral.
What about 1 or 2% deflation? People would still need food, to replace or repair cars. People would still want and need to buy houses.
Inflation to my mind supposes that we have to have perpetual growth, which is something that is not realistic.
If we grow 3 times the amount of corn that we need this year, do we need to plan to grow 3.1 times next year? Or decrease the cost by 2%? If all the inputs stay the same, where do you get the gains from(assuming that the process is as efficient and automated as possible)?
I think that by printing money and expecting a 1~2% gain every year we just end up robbing ourselves. Companies play games by not giving raises right away, moving production to areas of LCOL or shrinking goods and services but our retirement portfolios go up. Then at the end of the day, you are on a fixed income and having to squeeze down on your consumption.
As I said to a sibling, it is easy to say companies are greedy but how many of us are buying a more expensive product because we know that they treat their employees well? Or do we look at something then try and find it cheaper on Amazon?
In the 90's there was a large amount of disdain for lower income people who were shopping at Wal-mart because they were buying cheap plastic goods from China. The reason they were is because companies were offshoring their jobs. They weren't buying from Wal-mart because they like the products, they were there because they were trying to keep the same lifestyle they had before they lost their higher paying jobs. Companies that did not offshore were driven out of business as their customer base collapsed. We cheated our future selves to keep our inflation targets.
> If we grow 3 times the amount of corn that we need this year, do we need to plan to grow 3.1 times next year? Or decrease the cost by 2%? If all the inputs stay the same, where do you get the gains from(assuming that the process is as efficient and automated as possible)?
I think I get what you're driving at, but let me ask this question. Do you believe the price of corn in 1976 reflects the same market forces as the price of corn in 2026? Not the inflationary number alone, but why that corn costs what it does today versus 50 years ago?
There are microeconomic changes for sure, different farming techniques and maybe a different way of buying and selling surplus corn. But the life of a farm hand has likely changed, the average background of them has likely changed, the ownership model of the farm may have changed. The downstream buyers of corn have likely changed from mostly canned good manufacturers to fresh produce providers. And the macroeconomic forces surrounding everything has absolutely changed.
> Seemed like a vicious cycle.
The issue is inflation and deflation both tend to be positive feedback loops. Inflation can promote behavior that promotes inflation. Deflation can promote behavior that promotes deflation.
Note that I use "tend to" and "can promote". It's all based of off assumptions on how people value things and their behaviors, as is all economic models.
> why prices HAVE to keep going up
It really doesn't have to. We do so because economic models show that we should because of the way we behave. But, we also behave the way we do because of the economic systems that we've designed.
Prices have to keep going up if you want a system that promotes endless consumption and growth in consumption.
It also lets you have a "non-zero-sum" economy, where it appears everyone is making a "profit". But, in reality it isn't.
It also leads to those who have little bargaining power to become underpaid as they cannot negotiate higher salaries as inflation squeezes them.
It completely misses the mark on human behaviour of those living in scarcity. Inflation forces them to save whatever they can in the most stable and liquid medium (cash). As a result it creates a very strong force pushing low income individuals further down, it takes a lot of hard work and luck to get out.
Those with enough wealth don't need the same liquidity or stability, they have the luxury to invest and see their wealth grow and outpace inflation. As a result of this security they are more willing to spend on products and services.
Inflation causes scarcity for the poor and security for the wealthy.
The lower inflation is the less scarcity for the poor, and they will be more willing to spend and invest. Even in a environment with 0 inflation the wealthy still have incentive not to hoard cash. The incencentive to invest was never about the devaluation of cash, but rather the outpacing return of value that investment brings. Theoretically that still exists even in a deflationary environment, though I do suspect high enough deflation would have drastic negative impacts on the market to the point where returns are too low to justify the risk.
China Home Prices Fall at Faster Pace in Setback to Revival - https://www.bloomberg.com/news/articles/2026-06-16/china-hom... - June 15th, 2026
China Housing Demand to Stay at 75% Below Peak, Goldman Says - https://www.bloomberg.com/news/articles/2025-06-17/china-hou... | https://archive.today/LkbCF - June 16th, 2025
Older customers who have an idea in their mind of how much something is worth based on how much they've previously paid may eventually feel cheated and stop buying, but there's always a new generation of customers who never knew any better. There are things they can do to offset the backlash like they might offer a sale at the same time as they increase prices to give customers time to get used to the new sticker price. They keep the price the same and try to hide the fact that they're giving customers less product.
it's pretty shortsighted though because it makes our money increasingly worthless and eventually we'll end up like Zimbabwe and a loaf of bread will cost us $100.
Yeah, well their job is to get the best price for their product. Just as it is your job to get as much money as possible for your product, i.e. your talents and labors.
In a competitive economy with informed buyers this greed is what makes things cheap and high quality. Think about two grocery store owners in a small town. They've settled into an equilibria with each other to keep the status quo and not get greedy for a bigger share of the market by competing on price or quality. Then one day, seeing an opportunity, a new grocer moves in with fresher fruit, a wider variety of products and most importantly lower prices. All the customers go over to that grocery store and the old grocers have the choice to improve or die. From the point-of-view of the previous grocery store owners the new grocery store is "greedy", but it ends up benefiting everyone else.
Is it also greed when consumers want to pay as little as possible? (In some ways, of course it is, but at some point, the loaded term greed isn’t particularly helpful towards understanding perfectly ordinary microeconomic behavior.)
In any market where competition exists, companies compete against other companies for customers. Any company that doesn't (for whatever reason) maximize it's net income is likely to cease to exist at some point, or at the least is unlikely to grow. As a result, not being 'greedy' is usually not a viable strategy.
Describing simple self interest as 'greed' is inherently loaded and reductionist. Look at the natural world; pretty much all living organisms exhibit self-interested behaviors (at least at the group or species level, if not the individual level). Are all of those 'greedy' too? You could say yes and not be wrong, but in doing so you would dilute the meaning of the word 'greed'.
It's easy to boil it down and say greed or capitalism but I don't think it is a very reasoned position.
>Prices for goods in Europe in the sixteenth century rose to about four times the level that had prevailed during the preceding three centuries, increasing poverty levels but also raising the profit potential for those who were in a position to exploit an economy that was suddenly based primarily upon money and credit rather than labor and trade. https://www.ebsco.com/research-starters/history/worldwide-in...
Not sure if they were fully capitalistic by then but that was a long time ago.
I also know that Japan has had inflation for a long time, reading history about coins and looking up the worth of a mon that would be 10000 to 1 yen.
https://en.wikipedia.org/wiki/List_of_Japanese_cash_coins_by...
IMHO, inflation is driven by both greed (not just companies, everyone wants their retirement portfolio to go up) and increased money supply. The USA has a large amount of deficit spending, this is money that we just magic into existence. We have used it recently to try and manage crisis like 2008 GFC and COVID but I don't think that it is a coincidence that after those two events the costs of everything went up.
Worldwide the prevailing economic theory is that deflation is bad, I am not sure but unless we are willing to allow for some deflation you will only every have inflation.