Stabilizing the economy: the Role of Monetary Policy - How central banks can fight a recession

4 important questions on Stabilizing the economy: the Role of Monetary Policy - How central banks can fight a recession

The effect of using monetary policy to close a recessionary gap is:

An increase in the money supply shifts the LM curve to the right. For the public to hold the increased money stock the rate of interest must fall. As the rate of interest falls, consumption and investment increase leading to an increase in income, which in turn shifts the demand for money curve upwards.

The economist John Taylor has proposed a 'rule' which attempts to describe the way in which central banks react to output gaps and inflation:

i = pi + r* - b((Y* - Y)/Y*) - c(pi* - pi)

According to this rule, the central bank responds to both output helps and deviations in the rate of inflation from its targeted level. The coefficients b and c describe the strength of these responses.

Effectiveness of monetary policy in closing output gaps will depend on two factors:

  • The interest rate elasticity of the demand for money: the lower the interest rate elasticity of the demand for money, the greater the interest rate decline and the greater the effectiveness of a given monetary expansion in closing a recessionary gap.
  • the responsiveness of PAE to changes in the rate of interest: monetary policy will be most effective the consumption and investment are responsive to interest rate changes (when IS curve is relatively flat).
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A liquidity trap is:

A situation in which changes in the money supply doe not change the rate of interest, hence monetary policy becomes ineffective (the demand for money is perfectly elastic with respect tot the rate of interest, so the public is willing to hold any amount of money in the prevailing rate of interest).

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