I haven't read your entire reply, but the top link has a graph relating CPI with M2 if I'm not mistaken. Is'nt CPI a terrible measurement since it uses units that change constantly. Bit like measuring distance with a meter stick that changes in length everyday.
> Is'nt CPI a terrible measurement since it uses units that change constantly.
CPI's "units" are what people buy in day to day life. It has to change because it is a model of what is happening in the real world, and while imperfect that doesn't mean it's not useful:
As a Canadian, StatCan regularly changes what's in the CPI basket of goods in my country, and that is a good thing. Because if they didn't, then we'd still be looking at video rental prices (removed in 2015), 35mm film (2013), and going back further lard (1967):
Things added over the years: ride share services, ISP prices, mobile phone plans, etc.
The goods and services that people use when living life change over the years/decades and their lifetime, so why shouldn't the CPI (which can determine the wage raises they get to pay for living) reflect that reality?
