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2015-09-28 08:18:45
Weighing the economic benefits of low interest rates against the financial
risks
Sep 26th 2015 | From the print edition
THIS was supposed to be the year when the Federal Reserve would raise interest
rates, which have sat between zero and 0.25% since late 2008. Shortly after the
Fed allowed rates to lift off, pundits presumed that the Bank of England, which
since March 2009 has held its base rate at 0.5%, a three-century low, would
follow.
But on September 17th the Fed balked. Andrew Haldane, the Bank of England s
chief economist, has meanwhile been airing the prospect of a further cut
instead of a rise. Central banks that have raised rates in the past have had to
retreat, including the European Central Bank and Sweden s Riksbank, which has
since pushed rates into negative territory (see chart). Yet the longer rates
remain so low, the louder the chorus of concern about financial instability, as
investors in search of higher returns pile into ever riskier assets.
This week the IMF delivered its riposte to such concerns, in the form of a
report that concedes that financial risks are rising, but contends that higher
rates are the wrong way to rein them in. Interest rates are low because of the
disappointing recovery in advanced economies following the financial crisis,
which has kept inflation very low. An additional concern, cited by the Fed on
September 17th, is that the emerging economies which sustained global growth
over the past few years are faltering a development that would further impede
the recovery in the rich world.
The received wisdom among policymakers since the crisis is that central banks
needed another tool in order to keep financial conditions, as well as prices,
stable. Interest rates, buttressed if necessary by unconventional measures such
as quantitative easing, would continue to be used for macroeconomic purposes.
Meanwhile new macroprudential policies, such as requiring banks capital
buffers to vary with the business cycle, would be used to prevent financial
excess.
However, the new macroprudential tools are untested and some fear that they may
be too feeble to work effectively. In particular, the Bank for International
Settlements (BIS) in Basel, a forum for central banks, advocates higher
interest rates to tame financial excesses. In June, it repeated its call for
policy to focus less on short-term economic objectives.
The IMF, which counselled the Fed not to raise rates before its meeting this
month, takes the opposite view. The IMF s staff admit that raising interest
rates to stave off financial calamity might eventually lessen financial risks
by forcing households and firms to reduce their debts and by getting banks to
behave more cautiously. But the immediate effect of higher interest rates would
be to intensify financial risk, by raising borrowing costs even as weak demand
curbs household earnings and corporate profits. Banks would also become riskier
in the short term as asset prices fell and bad debts piled up.
The fund s staff highlight the central difficulty in using conventional
monetary policy to reduce financial risk: the immediate costs are likely to
outweigh the longer-term and uncertain gains, unless the crisis that is thereby
forestalled is severe. But crises as big as the one in 2008 are thankfully
rare. It would be unwise to direct monetary policy to ward off lesser financial
upheavals, in the light of evidence suggesting that even quite large rises in
interest rates would make them only a little less likely over the medium term.
And if the effect of such tightening were to foster overly low inflation
expectations or even to produce a deflationary mindset, that could work against
financial as well as price stability by raising the real burden of debt.
The IMF s paper is relevant but it will not settle the debate, not least since
the present set of circumstances is so unprecedented. One fear is that the
longer interest rates are held at emergency lows, the greater the potential for
trouble when they do eventually go up. Several financial markets are distinctly
frothy; some worry that the biggest bubble of all is in the one that is
supposedly least risky, that of sovereign bonds. But the fund s conclusions
will nonetheless be useful ammunition for those arguing that the risk of
raising rates now is too great.