Implications of a negatively sloped LM curve |
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Authors: | Douglas W Mitchell |
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Institution: | (1) West Virginia University, USA |
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Abstract: | Conclusion This paper has shown that the LM curve could be downward sloped if the rate of interest on money (specifically liquid deposits)
is sufficiently flexible. If so, the momentary equilibrium could be unstable, especially if the LM curve is far from the vertical
(i.e., if the interest rate on money is very flexible). Prospects for instability are enhanced if output adjusts slowly or
if the central bank varies the money supply strongly over time in response to the general interest rate. If stability obtains
with a downward sloped LM curve, fiscal policy has an unconventional direction of effect on income.
Three policy implications follow directly.
(1) The rate of interest on deposits which are part of the money supply used as the central bank control tool, should not
be allowed to be too flexible (to avoid instability).
(2) If the monetary deposit rate is quite flexible, the central bank should not have the money supply react too strongly to
the general interest rate—i.e., should not come too close to a pure interest rate policy (again, to avoid instability).
(3) If the monetary deposit rate is very flexible, fiscal policy should be used with caution (due to the unconventional direction
of effect in the event LM is downward sloped). |
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Keywords: | |
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