the value of the money multiplier is equal to
In monetary economics, a money multiplier is one of various closely related ratios of commercial bank money to central bank money under a fractional-reserve banking system. Most often, it measures an estimate of the maximum amount of commercial bank money that can be created, given a certain amount of central bank money. That is, in a fractional-reserve banking system, the total amount of loans that commercial banks are allowed to extend (the commercial bank money that they can legally create) is equal to an amount which is a multiple of the amount of reserves. This multiple is the reciprocal of the reserve ratio, and it is an economic multiplier.