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Oct 4 '21 at 9:06 comment added JeromeDavis Thanks for the answer, I can say two things: I think I don't agree that barter is necessarily more difficult than money and by interest free economy I mean to economies that voluntarily abstain interest (I am sorry before this community to not make it clear in the question).
Oct 4 '21 at 5:35 history answered Giskard CC BY-SA 4.0