When talking about inflation there are two main types. I usually call them treasury and CPI inflation, but I don’t necessarily know if those are widely used terms. By treasury inflation I refer to the total supply of money, like the inverse of federal interest rates basically. By CPI inflation I mean the change of the consumer price index over time. Both are useful, but depending on the context one may be more useful than the other.
Your first type (treasury) isn’t usually called inflation, AFAIK.
That’s a metric more widely referred to as ‘money supply,’ and it has a number of different types even within that (M0, M1, M2, etc), depending on if you’re talking about simple cash, bank deposits, and other liquid assets. https://en.wikipedia.org/wiki/Money_supply#Measures_of_money_supply
Those things are called the “supply of money” and a “price index”…
And yeah, changes on the first one isn’t often called “inflation”. But if you clearly define what you are talking about, people will understand.
I understand why you are putting them together but I think only the CPI measures inflation, there are other indexes also but inflation has to do with the value of money decreasing over time.
The supply of money is inextricably linked to inflation but an increasing money supply is not inflation, under certain circumstances you could have no, or negative inflation, with increasing money supply. If you had high demand for currency due to large volumes of exports for example.
In short the terms you want are inflation and money supply.
Disclaimer: I dropped out of an undergraduate economics degree about 2/3 through around 15 years ago. I believe this is correct but please anyone correct me if not.
The one companies refer to when justifying price hikes is called “Bullshit”.