if the
LM
curve is more unstable than the
IS
curve, an interest-rate
target is preferred.
We can now see why many central banks decided to abandon monetary tar-
geting for interest-rate targeting in the 1980s. With the rapid proliferation of new
financial instruments whose presence can affect the demand for money (see
Chapter 21), money demand (which is embodied in the
LM
curve) became highly
unstable in many countries. Thus central banks in these countries recognized that
they were more likely to be in the situation in Figure 23-9 and decided that they
would be better off with an interest-rate target than a money supply target.
4
IS
Interest
Rate,
i
i
*
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