“The scale of value is nothing but a constructed tool of thought. The scale of value manifests itself only in real acting; it can be discerned only from the observation of real acting. It is therefore impermissible to contrast it with real acting and to use it as a yardstick for the appraisal of real actions.” – Ludwig von Mises
Praxeology is concerned with that part of value scales that can be ascertained from actions.
Price implies value scales—the latter (ideas) can be ascertained only through the former (actions).
“In praxeology we are not interested in the concrete content of his value scales nor in his underlying personality. We are interested in value scales as revealed through choice.” – Murray Rothbard
“We deduce the existence of a specific value scale on the basis of the real act; we have no knowledge of that part of a value scale that is not revealed in real action.” – Murray Rothbard
Next:
- 13-6a The same individual exhibits different scale of values at different times
- 13-7 Value scales consist of specific units, and associated subjective utilities
Related:
- 13-8a2b Prices do not exhaust value scales, but value scales can be ascertained only through prices in money economy
- Ranked values
- Praxeology is content-independent
Good recommendation is about modeling individual instinct and taste—social graphs are a proxy at best (and a misleading one at worst). Recsys tries to infer the full value scale from partial revealed preferences (clicks, watches, buys). The point is that what matters is the individual’s value scale, not the social graph around them.
Related:
-
- Social graph based recsys exploits social proof rather than
serving genuine preferences.
- Social graph based recsys exploits social proof rather than
- <> 13-4d1 A good is valued not for itself, but for its service in satisfying the wants of acting individual
- Recsys should recommend based on what the good does for the individual, not what’s popular in their network.
- <> 13-4d4 Value is subjective
- Recsys should model subjective value (instinct, taste), not social proximity.
- <> 13-9a3 Praxeology is concerned with preference as revealed through choice
- the best recsys would learn from revealed preferences (actions), not declared social connections.