Martin Wolf:
By Martin Wolf, FINANCIAL TIMES,
Published:
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It takes two to tango. But there can be
only one leader in the dance. In the dance of global macroeconomics, the
I
argued last week that the governments of Asian emerging market economies have
been determined to run strong current account positions at least since the
financial crises of 1997 and 1998. Given their countries' extraordinarily high
rates of private savings, it is quite easy for them to do so.
Where does this leave the
To understand the implications,
consider the

Since the emerging market
financial crises, the financial surplus of foreigners with the
These are identities. They do
not tell us what is driving the economy. But the answer to that question seems
reasonably clear. The current account deficit has risen during boom and
recession. It is driven by the macroeconomic behaviour
and exchange rates policies of the rest of the world. Meanwhile, the
Was the fiscal slide inevitable?
No, but it could have been avoided only if the
For the same reason, the desire of both presidential candidates to reduce the fiscal deficit in coming years is meaningless without change in the external position. The point is powerfully made in the latest in a series of papers authored by Wynne Godley and associates for the Levy Economics Institute and the Cambridge Endowment for Research in Finance.*
The starting point must be with
the current account deficit. The paper is rather optimistic on this: world
output is assumed to rise at a real rate of 4 per cent a year between early
2004 and the end of 2008; the US economy grows at a rate of 3.2 per cent over
the same period; and the exchange rate remains 9 per cent below its peak in
early 2002, on the Federal Reserve's broad index. On these assumptions, the
trade deficit reaches a peak of 6 per cent of GDP, before stabilising.
But the net liability position of the

Now consider the domestic counterparts. In the paper, the authors assume that any increase in spending by corporations is offset by some retrenchment by households. This generates a move by the private sector into a modest financial surplus of 1 per cent of GDP, still below the historic average of just under 2 per cent. If that were to happen, the fiscal deficit would, on their assumptions, have to climb towards 9 per cent of GDP four or so years from now.
This seems outlandish. But note that even if the private sector were to move back towards a financial deficit of 3 per cent of GDP, the fiscal deficit would still need to be 5 per cent of GDP to sustain demand at levels needed for full employment in the context of a leakage of 8 per cent of demand into the current account deficit.
Let us be blunt about it. The
What cannot
last will not do so, as the late Herb Stein famously remarked. But we
can choose how it changes. The
* Godley, Alex Izurieta and Gennaro Zezza, Prospects and Policies for the
A basic explanation of the article: I think this is a really cool article. The last few paragraphs are sobering. Notice that he is not at all partisan about Republicans vs. Democrats.
To review the national income accounting “identities” (i.e., something true by its very definition) to which he refers:
Y = C + Id + G + X – M,
where Y is national income (GDP), C is private consumption, Id is private domestic investment, G is government deficit spending (G = E – R), or excess of Expenditures over Revenues), X is exports, and M is imports. The above leads to
Y – C – Id = Sp = G + X – M = - Sg + X - M
where Sp is Private sector Saving, Sg
= - G is Governmental “Saving.”
We can write the above as
Sp + Sg – (X - M) = 0, or
Sp + Sg = X - M = CA.
Or the amounts we save privately and publicly (Sp + Sg) (or dis-save, if they are negative) must equal the amount we invest and lend abroad (or, if it is negative, get investments and borrow from abroad).
X – M is our Current Account (CA = X-M ),
which is just the
mirror-image of our Capital Account (KA), the amount we lend or borrow abroad:
CA + KA = 0
In recent years CA has been very negative (big trade
deficit) and KA very positive (we borrow a lot from abroad). Thus we can write:
Sp + Sg – CA = Sp + Sg + KA = 0.
the “3
balances” referred to in the graph above,
Private Savings, Public “Savings” (so a negative represents borrowing), and the
Capital Account surplus (essentially, what foreigners lend us or invest in our
economy) – the sum of which must go to zero. Wolf reiterates the point
made by Godley in a letter I sent earlier this week – since the Sp is very
nearly zero, governmental borrowing (the Sg, now at
about -5% of GDP can only go down (as an absolute value) if our trade imbalance
K = M – X = - CA goes down in tandem. And that probably means a
devaluation of the dollar. And not many politicians want to talk about
THAT!
// jim stodder