In the agrarian society worldwide, it is thought that a system, in which seeds were loaned to peasants in the planting season to make them pay back the loaned seeds and the born interest in the harvesting season, was launched in the early days.
世界各地の農業社会では、その初期の頃から、播種期に種子を貸与し、収穫期に利子を付けて返済させる慣行が生まれたと考えられている。