Could such a middle ground exist? Sure. Could someone design a system where that middle ground was a natural equilibrium? Unsure. I don't see how you incentivise the goldilocks behaviour (but I am not the smartest bear so maybe someone else can)
There's a good book on this topic by a Scottish philosopher: An Inquiry into the Nature and Cauſes of the Wealth of Nations by Adam Smith, LL. D. and F. R. S, formerly Profeſſor of Moral Philoſophy in the Univerſity of Glasgow.
There's a good book on this topic by a Scottish philosopher: An Inquiry into the Nature and Cauſes of the Wealth of Nations by Adam Smith, LL. D. and F. R. S, formerly Profeſſor of Moral Philoſophy in the Univerſity of Glasgow.