Subject: Re: book recommendation
I had always thought that the CPI was based on 1967=100 but these data are based on an average 1982-4 being 100.

Dumb question. Yes, it was changed in Jan 1983. There have been several rebasings over the years. Part of it is to allow for new widgets to be included in the index (e.g. PCs) and others (typewriters) to be removed. They chain it based on the things that are constant (food, clothing) but there would seem to be some SWAGs involved in the chaining. I guess taking econ 101 in the years between those two rebasings just branded the first of the two in my ur-neurons.

Rgds,
HH/Sean