Certain basic needs are definitely not created artificially. So every human being has requirement for food, clothing, shelter and the very minimum. The more I think about it, the more it seems like, for instance, primary sectors could be handled so much better with central planning. e.g. instead of growing artificially subsidized corn, grow only an amount of corn that is required by the economy (perhaps a little extra). Continuously adjust production to meet demand if it increases.
Demand for fancy food is more artificial. Maybe I love oysters but you like quail instead. So there could be a free market operating for oysters and quails.