I was reading a few articles about population growth and famines and thereby discovered that some of the recent famines where caused by government policies, among which I read at least twice (USSR and China) that collectivisation played a major role in decreasing farming/labour efficiency or at least crop distribution efficiency.
So here comes my question: are there instances where collective farming has actually brought benefit to the population of an area (not necessarily in terms of crops throughput, but more in terms of wellbeing)?
Also, have there been instances where communal dining has brought a increased efficiency of food usage, as opposed to the over consumption induced by this policy in the mid 20th century china?
I thought maybe rural societies or at least more decentralised (maybe more primitive?) communities might have had a better chance to benefit from such measures, but i have found little information in regard to farming and cooking policies of, let's say, the Amish people for example.