In “The Giving Environment: Another Perspective on the Economic System of Gatherer-Hunters,” the #anthropologist Nurit Bird-David described an interesting social institution among the Nayaka, a forager society in southern India. Bird-David calls this “demand sharing.”
“Nayaka give to each other, request from each other, expect to get what they ask for, and feel obliged to give what they are asked for. They do not give resources to each other in a calculated, foresighted fashion, with a view to receiving something in return, nor do they make claims for debts.”