Within our close genetic relatives, the apes, species tend to come in pairs, a gracile and a robust form. Not all of which survived to the present day, the gracile gorilla does not, the robust humans -- Neanderthals, possibly Denisovans -- do not. And there are things we can observe in those other apes which do speak directly to our own economic behaviour. The phosphorous is preferentially moved and then traded to where it is in shortest supply, and so gains the trade of more sugar in return. We even have, in those plant roots, evidence of supply and demand curves in operation yet there are all too many who deride the price system among us humans.

Source: Dhaka Tribune October 31, 2020 21:33 UTC