The document discusses various definitions and concepts related to money: 1. It outlines traditional, Friedman's, and Gurley-Shaw definitions of money which increasingly broaden the scope of money to include near-money assets. 2. It describes the three main functions of money as a medium of exchange, unit of account, and store of value. 3. Theories of neutrality and non-neutrality of money are discussed in relation to prices, interest rates, and economic output in the short and long run. 4. Quantity theories of money like Fisher's equation and the Cambridge cash balance approach link the money supply to the price level and value of money through demand for real cash balances

1. Money