Rather, the key function of banks is the provision of financing, meaning the creation of new monetary purchasing power through loans, for a single agent that is both borrower and depositor. Specifically, whenever a bank makes a new loan to a non-bank customer X, it creates a new loan entry in the name of customer X on the asset side of its balance sheet, and it simultaneously creates a new and equal-sized deposit entry, also in the name of customer X, on the liability side of its balance sheet. The bank therefore creates its own funding, deposits, through lending. It does so through a pure bookkeeping transaction that involves no real resources, and that acquires its economic significance through the fact that bank deposits are any modern economy’s generally accepted medium of exchange.