Quantity Theory of Money

Overview


The quantity theory of money states that
{% MV = PY %}
where

  • M = Stock of Money
  • V = Money Velocity, which equals the average number of times that a given unit of currency is exchanged in the given time period.
  • P = General Price Level - represents the average level of prices in the economy
  • Y = National Production - the amount of product sold in the economy over the specified period.

Price Forecasts


The quantity theory of money provides a possible way to forecast changes in the general level of prcies due to changes in the economy (primarily the money supply and real national production). (inflation)
{% P = MV/Y %}
If the money velocity can be assumed to be constant, this equation relates prices to money and production. As a general rule, the velocity of money is not constant (except possibly in the long run)

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