The term implies that creditors and debtors are the same people lending to each other, but there are several nuances. Some think of mutual credit as a type of currency but this can be problematic because no currency or money is 'issued' in the sense that most people would understand it. Cash is very rarely 'issued', accounting normally taking place on a ledger, therefore it could also be called 'ledger money', a money "system", accounting for exchange or credit clearing system. The accounting is explained under multilateral exchange.