Current monetary
policy is still primitive and will remain so without making use of new measures
such as macroprudential policies
Monetary policy has come a long way but it is still in its
initial stages of development. Serious
shortcomings mean that the tools of monetary policy are still rudimentary just
as those of medicine were crude in the past.
In the same way that leeches would be prescribed for every ailment in
medieval times, central banks have tended to rely solely on interest rates to
manage the economy. The tendency to
“reach for the leeches” is still with us even though the global financial
crisis has highlighted the flaws inherent in this approach and a range of new techniques
for managing the economy have been made available.
Learning some hard
lessons
Doctors often did more harm than good in antiquity due to a
lack of understanding of the workings of the human body. With our knowledge of the economy also deficient
in places, economists may be guilty of causing similar damage. Hubris led economists to believe that booms
and busts could be eliminated but their faith was shown to be spectacularly misplaced. Despite this, economists have been slow to adjust their view of the world
even though their remedies are proving both ineffective and costly.
The global financial crisis and its aftermath have taught us
a few valuable lessons. The limitations
of using interest rates to moderate the business cycle (both before and after
recessions) are now apparent. Higher
interest rates do little to temper lending when both bankers and borrowers want more debt. It is also becoming clear that different
sectors of the economy react to interest rates in different ways. Consumers have shown themselves willing to
take on excessive debt in order to spend or to buy property. On the other hand, businesses cannot always
be enticed to borrow for investment when the economy is weak.
The limits of monetary policy have been laid bare by the
faltering economic recovery. Low
interest rates and cheap cash have spurred on some lending but not the right type to generate sustainable economic growth.
Households have taken on debt to buy property (which mostly just
increases prices) rather than businesses or the government borrowing to make
the economy more productive. Surplus
funds have also built up prices in the stock market which, while somewhat
beneficial in the short term, will create problems down the line.
The abundance of cash in the financial system may also reduce the effectiveness of central banks’ control over interest rates.
For a better world
Monetary policy needs to continue to develop as economists
learn more about the economy and how it reacts to different policies. Manipulating interest rates is a blunt
instrument that is applied across the whole economy. Interest rates need to be raised eventually
but it seems rash to do so in response to distortions in certain sectors. An early interest rate hike has been proposed
as a countermeasure to the booming UK property market. Yet, this is like chopping off an arm to treat
an infected finger.
A more measured approach would be preferable but will take
time to realise. Techniques such as minimally
invasive surgery have been developed in medicine over many years and economists
should aim for similar progress in monetary policy. Disparities between policies in theory and
practice mean that trial and error will be necessary. Using a still sickly economy to trial new
policy options may seem reckless. Yet
experimentation is the main route to breaking fresh ground even in medicine where
there are actual lives at risk. Forward
guidance is an example of a policy which seemed useful in theory but whose application was fraught with issues.
A wider range of policies would help deal with problems now
and in the future with greater effectiveness.
These two goals can be achieved by the Bank of England trialling the
much-discussed macroprudential
policies such as caps on mortgages and other limits on property
lending. Having a greater range of
options allows for better tailoring of policy while targeted measures enable
greater freedom in setting interest rates to reflect the overall economy. Just as modern medicine has had to advance
beyond leeches, future monetary policy will need to progress past what we currently
have and such an evolution will only happen as a result of taking bold actions
today.