Key features of monetarism
1) The main cause of inflation is an excess supply of money, in the words of Milton Friedman “too much money chasing too few goods”.
2) Tight control of money and credit is required to maintain price stability.
3) Fiscal and monetary policy are ineffective in controlling AD.
4) The key is for monetary policy to be credible so that people’s expectations of inflation are controlled.
Quantity Theory of Money
Irving Fisher devised the quantity theory of money in the early 21st century.
The theory is based on the equation: M x V = P x Y
M = money supply
V = velocity of circulation
P = price level
Y = output
Both V and Y are fixed. An increase in the money supply will lead to an increase in inflation.
Example:
If money supply is initially £1000 and velocity is 5, output = 5000
1000 x 5 = 1 x 5000
If money supply doubles the equation =
2000 x 5 = 2 x 5000
Quantitative Easing
QE may be used if it is believed that inflation is too low or the economy is deflating.
Process:
Bank of England purchase assets such as government bonds using newly created money.
Commercial banks will then have greater liquidity and will be more willing to lend to consumers = higher AD.
Increase in money supply may also lower market interest rates, reducing inflows of ‘hot money'.
This may cause a depreciation of the exchange rate and increased UK competitiveness.