simply build index out of F303ff variables

[maxheld83]

instead of running a fancy dim reduction to empirically find the hypothesised Marxist types of jobs, we could also just assume which of the activities (e.g. "advertising, marketing, public relations") map onto which Marxist category, and just go with that (for trend or sectoral analyses).

This seems obviously defensible for some:

"Advertising, marketing, public relations"
(adv / F309)

Seems to be clearly in the production of exchange value quadrant, while

"Nursing, caring, healing"
(care/F316)

seems to be in the reproduction of use value quadrant, etc.

Once we've built the index, we might still try and check how well it fits with actual jobs, or how people work together.