A regulation of the central bank used by most but not all of the central banks of the world, that places the minimum volume of reserves a commercial bank must be held, is known as the reserve requirement. The minimum reserve is usually prepared by the central bank to be no limited than a particularized % of the amount of collateral liabilities the commercial bank owes to its clients.
The Consumer Price Index (CPI) is a measure of the average change overtime in the prices paid by urban consumers for a market basket of consumer goods and services
