Deflation discourages spending at all levels, because why spend right now when your cash will be worth more later? This kills any economy.

Because our monetary supply is controlled by an entity that can print new money but doesn’t have any good way to take money out of circulation.

Inflation (of the supply of money in circulation) is caused by an increase in the supply of money in circulation. As the number of US dollars in circulation increases, inflation (of the money supply) is experienced.

We experience inflation instead of deflation because the ones who control the supply of money have chosen it.

And while many commenters are defending inflation as good and necessary, there is an argument that inflation punishes individuals who save or are on fixed income. Inflation of money supply is also described as "devaluation of currency"- it is becoming less valuable over time. Inflation could also be described by a "loss of purchasing power" which means a person can buy fewer goods and services with the same amount of money as the currency loses its value.

The two largest central banks in the world, the Federal Reserve and the European Central Bank, have explicit mandates for keeping inflation under control.

The European Central Bank is tasked with

the achievement of a high degree of price stability; this will be apparent from a rate of inflation.

The Federal Reserve has the "Dual Mandate" of price stability and achieving the maximum sustainable employment.

Price stability is about controlling inflation. It's complicated, but high inflation both affects the direct price of goods and services and expectations of their future prices. So, in a high inflation environment, what costs $10 now may costs $12-$14 in the future.

We saw this after COVID, when supply chain issues became a huge problem and it was difficult to say how much goods and services would cost. Multinational corporations bragged about their ability to "price-take", or raise prices in response to supply chain delays and have consumers continue to pay it.

This demonstrates, at least in part, why our buying decreases far more often than it increases: large companies can "pass through" inflationary costs to consumers. You need soap to clean yourself and food to eat? Well, Proctor and Gamble and Tyson Foods bet they can raise prices on soap and chicken and that you'll pay it. And you do. Because what choice do you have?

In the U.S. specifically, there is the flip side of inflation: the maximum sustainable employment rate. If too many people are employed, the labor markets get hot. You know what that means? Mo' money for you! Mo' money for me! Mo' everybody!

You know what that also means? Demand for goods and services is going up. Supply is going to lag behind. It's like a bunch of isolated people with jobs wanting a lot of stuff during and after a pandemic that decreased the supply of goods and services. This causes...inflation. All those people are going to be willing to pay more than the next person (up to a point) for the same Nordictrack Treadmill.

This also demonstrates another reason companies can pass through inflationary costs: under a hot labor market, consumers are willing to pay higher prices.

So, there are at least two reasons why consumer buying power decreases more often than it increases. Conditions are such that either

1. Consumers must pay more because what choice do they have?
2. Consumer want to pay more because the value a good or service higher than the next person up to a point.

In either case the response of the Federal Reserve will be to raise the price of money, making both capital and labor more expensive. The Fed's recent increases to inflation make you, as an employee, and the things you want as a consumer, more expensive.

In contrast, the primary way consumer buying power increases is if they make more money. (That happens in a hot labor market...but then the consumer gives the surplus away if they're not careful). However, that raise must be greater than the rate of inflation. If you get a 1% raise and inflation is 2%, well, your buying power decreased, even though you'll still see a higher number on your paycheck. If you get a 3% raise and inflation is 2%, your buying power increased.

The challenge for businesses is handling inflationary increases in capital and labor. It's easy for capital: you need stuff to produce stuff. And it's likely you can pass through those costs to consumers.

In contrast, labor has all sort of demands like...water/bathroom breaks, mandated over time, safety regulations, etc. And workers don't see a decrease in their chances of being maimed at work as an increase in value from their employer. If a company is going to invest in its employees, given a certain dollar amount, workers would generally prefer to see that money go into their pockets rather than be invested in stricter adherence to safety regulations or more breaks while at work. But companies can't often make that choice, the law changed and they must adhere to safety regulations. So, no raise for you!

Now, it's certainly more complicated than that. Businesses have a lot of financial demands, of which employee compensation is a small, though often significant, piece of the pie. It's harder to give raises than it might seem. Unless your CEO makes one hundred thousand dollars a second, as some do, then wage increases may be difficult to do.

Debt is what drives inflation. Let's say you got a total of 1k USD in circulation. Now, let's say that some person decides he needs to borrow 100 USD from the bank. The bank gives him the 100 USD, but with intrest. Let's say that that intrest is 10 USD. So, the person gives back the 100 USD plus 10 USD intrest. But, there's a problem. If a total of 1k USD is in circulation, where do the 10 USD come from. It can't come from thin air, so it has to be printed. Thus, now you have 1.01k USD in circulation which inflates the prices of things.

There are other reasons as well. This is all well explained in Zeitgeist. I suggest you take a look at the documentaries.

Because capitalism = cancer. It survives on endless growth. it hates retraction, even if the host survives longer.

So they print money and target inflation. They take actions that MAKE it so things never deflate.

Bigger numbers are better than small numbers and I have no idea.