Money Supply

The total amount of money in an economy at a given time. In the UK the main measures of money supply are:

1. M0: Sterling notes and coins in circulation outside the Bank of England including those held in tills of banks and building societies plus banks' operational deposits with the Bank of England. Also known as narrow money.
2. M4: M0 plus all sterling deposits at UK monetary financial institutions held in the M4 private sector. Also known as broad money.