This might seem
easy. The depreciation immediately after Brexit, plus subsequent
declines in the number of Euros you can buy with a £, are pushing up
import prices which feed into consumer prices (with a lag) which
reduce real wages. But real wages depend on nominal wages as well as
prices. So why are nominal wages staying unchanged in response to
this increase in prices?
Before answering
that, let me ask a second question. Why hasn’t the depreciation led
to a fall in the trade deficit? Below are the contributions to UK GDP
from the national accounts data.
Net exports are very erratic, but averaging this out they have
contributed nothing to economic growth since the Brexit depreciation.
The belief that the
depreciation should benefit UK exports is based partly on the idea
that exporters will cut their prices in overseas currency terms,
making them more competitive. Yet at the moment UK the majority of exporters seem to be responding to the depreciation not by cutting
prices but by taking extra profits. If they keep their prices
constant in overseas currency terms (from currency denomination
data almost as many exports are priced in overseas currency as
imports), sales will stay the same but profits in sterling will rise.
While this helps account for the lack of improvement in net trade, it increases the puzzle over why
nominal wages are not responding to higher import prices. If exporting firms profits are rising because of the depreciation, why not pass some of that on to their workers?
One perfectly good
answer is that the labour market is weak, and what has stopped real wages falling further is that firms do not like to cut nominal wages. In
these circumstances there would be no reason for exporters to share
their higher profits with their workforce. So the immediate impact of
the depreciation has not been a decline in the terms of trade (export
prices/import prices), but instead a shift in the distribution
between wages and profits. But many people believe that, with unemployment falling rapidly, the labour market is not weak.
There is
another reason why exporters might be increasing profits but not
sales, and not passing higher profits on to higher wages, which goes
back to a point I have stressed before.
We need to ask why the depreciation happened in the first place. To
some extent the markets were responding to lower anticipated interest
rates set by the Bank of England, but there is more to it than that.
Brexit, by making trade with the EU more difficult, will reduce the
extent of UK-EU trade. Furthermore there are two reasons why Brexit
is likely to reduce UK exports by more than UK imports.
The first is
specialisation. Because countries tend to specialise in what they
produce, they may not have firms that produce alternatives to many
imports, making substitution more difficult. The EU produces many
more varieties of goods than the UK, so they are more likely to be
able to substitute their own goods to replace UK exports. The second
is the importance for UK exports of services, and the key role that
the Single Market has in enabling that. On both counts, to offset exports
falling by more than imports after Brexit we need a real depreciation
in sterling. Exporters will have to cut their prices in overseas
currency terms, and a depreciation allows them to do this.
Of course Brexit has
not happened yet. We still get a depreciation because otherwise
holders of sterling currency would make a loss. So firms do not need
to cut their prices in overseas currency yet, allowing them to make
higher profits. But these higher profits will be temporary,
disappearing once Brexit happens. It would therefore be foolish to
raise wages now only to have to cut them later when Brexit happens
(no one likes nominal wage cuts). To restate this in more technical
language, when Brexit does happen the UK’s terms of trade will
deteriorate as a response to export volumes falling by more than import volumes.
Firms are in a sense anticipating that decline in the terms of trade
by not allowing nominal wages to rise to compensate for higher import
prices.
So before Brexit
happens we are seeing a distributional shift
between wages and profits, but once Brexit happens profits will fall
back and we will all be worse off. For Leave voters who think this is
all still just ‘Project Fear’, have a look at the national
accounts data release
that the chart above came from. It shows clearly that UK growth in
the first half of this year has been slower than that in the
US, Germany, France, Italy and Japan by a wide margin. What Leave campaigners called Project Fear is real and it is happening right now, but do not expect your government or some of your newspapers to tell you that.