EFTA01388570.pdf
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The limits of monetary policy PerwttAGE kv, Woch x.1
Most recent discussions take a highly accessible paper by Noble laureate Paul
Krugman as their starting point.5 The implication of his model is that there is 5 Krugman, Paul R. "It's Baaack:
indeed little that conventional monetary policy can do in the here and now. Japan's Slump and the Return
Printing more money to buy more bonds makes no difference. of the Liquidity Trap." Brookings
Papers on Economic Activity, 1998,
29(2), pp. 137-205.
There is a way, however, that a central bank might still work its magic, namely
through expectations. This means convincing households and firms that you
will not just expand money supply today, but continue to do so tomorrow. If it
succeeds, inflation expectations will rise, allowing real interest rates to fall and
stimulating investment. Of course, this only shows that monetary policy might
work, not that this is the best option, or even a particularly good path out of the
liquidity trap.
Once interest rates are at zero, short-term bonds and money are close to perfect
substitutes. Conventional monetary policy loses much of its potency. Even if a
central bank somehow succeeds in pushing nominal interest rates on bank deposits
into negative territory (an option section 2 looks at), this would simply make cash
even more attractive than bonds as a store of value. So, if a central bank keeps on
buying short-term bonds, we would still have the same problem it would keep on
buying, without those purchases having any impact.
But what if the central bank starts buying longer-duration government bonds?
Couldn't this help by reducing the term premium? And surely, QE might squeeze
spreads, either by central banks buying corporate bonds directly or by pushing
private investors into higher risk assets? And finally, all this should reduce funding
costs for companies building new factories, should it not? Also, might the rise in
asset prices of all sorts not make households feel wealthier, boosting consumption?
Well, a resounding "Maybe" to all of the above. Something along these lines has
happened in practice. Central banks used to be lenders of last resort. Increasingly,
they have instead become the buyer of last resort. This certainly worked in terms
of reducing longer-term government bond yields - ballooning central bank balance
sheets coincided with falling bond yields.
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expected returns will be achieved. Allocations are subject to change without notice. Forecasts are based on assumptions, estimates,
opinions and hypothetical models that may prove to be incorrect.The information herein reflect our current views only, are subject to
change, and are not intended to be promissory or relied upon by the reader. There can be no certainty that events will turn out as we
have opined herein.
CONFIDENTIAL - PURSUANT TO FED. R. CRIM. P. 6(e) DB-SDNY-0092202
CONFIDENTIAL SDNY_GM_00238386
EFTA01388570
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