/biz/ - Business & Finance

>>23954111
This

>>23952835
Yes you need more of something ($), to pay for something that's worth X amount in inflation.

When the X amount of a good/service stays the same but the number of $ u need changes, that's not because the price of X is changing as much as the number of $ you need changes.

The consumer price index measures how the price of most (but not all) goods change against the dollar. It measures inflation but is also affected by what you can read 5-6 times elsewhere in this thread (PRODUCTION COSTS) and other things...

The rate of inflation is """basically""" the derivative of the CPI graph,

R.O.I. = (CPI (@ time t) - CPI (@ time x)) / CPI (@ time x)

The graph has gone at a straight 45 degree angle since 1975, which means a couple things

you can break down the index by different consumer categories, which I did.

if the cpi value is increasing at a steady pace, that means that its derivative has risen but is not also rising.