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A dock worker at the port of South Louisiana. The US has a trade deficit of more than $650 billion.
A dock worker at the port of South Louisiana. The US has a trade deficit of more than $650 billion.

At the G20, pleased about doing nothing

When the major economies manage to do only the things that are obviously in their own interests, they still find a way to praise their group's effectiveness.

The world's 20 most important finance ministers and 20 most important central bankers travelled to Washington last month to accomplish, predictably, exactly nothing.

The subject of the recent meeting of the Group of 20 (G20) developed and emerging economies was "global imbalances". According to the group's communique, the meeting focused on developing a procedure for identifying which G20 countries have "persistently large imbalances" and why they have them. This delicate analytical task was assigned to the IMF, which is to complete its work before the ministers' next meeting in October.

It hardly takes a team of IMF economists to answer these questions. Anyone who has taken a first-year undergraduate course in economics would have no difficulty in identifying the countries with the largest trade surpluses and deficits. The US wins first prize with a trade deficit of more than US$650 billion (Dh2.38 trillion) in the most recent 12 months. No other country comes close enough to be awarded second prize.

The broader current-account indicator (which includes trade in services and net investment income) confirms the leading role of the US: its external deficit is nearly $500bn. No other country has more than a $100bn current-account deficit.

Even if we look at current-account deficits relative to countries' GDP, the US's 3.3 per cent ratio exceeds that of almost every other economy. The three countries with larger deficit-to-GDP ratios have a combined deficit of less than $70bn - not enough to warrant the G20's attention.

The country with the largest current-account surplus is, no surprise, China, with a positive balance of more than $300bn. Japan and Germany are the only other countries whose current-account surpluses exceed $100bn.

China's current-account surplus is 4 per cent of its GDP. Several oil producers have larger relative current-account surpluses that, combined, exceed China's in absolute terms. And there are several other European and Asian countries with higher relative current-account surpluses that together exceed that of China.

But the G20's decision to focus only on member countries that account for more than 5 per cent of its combined GDP will exclude these smaller countries from the spotlight. Only China and the US, and perhaps Germany and Japan, will be at centre stage.

So much for the not-so-difficult task of identifying the countries with big imbalances. But what about the causes of those imbalances?

Every student of economics knows that a country's current-account deficit is the difference between its national investment (in business equipment, structures and inventories) and its national saving (by households, businesses and government). That is not a theory or an empirical regularity. It is an implication of the national income-accounting definitions.

The US has an enormous current-account deficit because the federal government's dissaving (the fiscal deficit) drags down the country's overall national saving. And the reverse is true for the current-account surpluses of China, Germany and Japan. In each of those countries, the level of national saving exceeds domestic investment, leaving output to be exported and funds to be loaned abroad.

So the policy actions needed to reduce the trade and current-account imbalances are clear enough. The US must raise its national saving rate by shrinking its budget deficit, which stands at nearly 10 per cent of GDP. Fortunately, the desirability of doing so is now clear to every policymaker in Washington and to most of the American public. It will begin to happen as the massive "fiscal stimulus" enacted in 2009 comes to an end, the political process begins to deliver spending cuts and economic growth yields more tax revenue.

When Barack Obama, the US president, attends the G20 summit of heads of government in Cannes in November, he will no doubt agree to further reductions in the US budget deficit. But that will be an empty promise: the US president has far less control over legislation than government heads in parliamentary democracies such as the UK or in countries such as China. And Mr Obama's power is even more limited now that his Democratic Party controls only one house of the US Congress. The history of previous summits suggests the president will promise in Cannes only what he has already proposed at home.

The G20 ministers and central bankers are, of course, in no position to change the behaviour of either the US or China, whose recently adopted five-year plan makes clear it will reduce national saving by increasing consumer spending and raising government outlays for services such as health care. In other words, China will, for its own domestic reasons, reduce its current-account surplus.

The national self-interest that is driving the Chinese to stimulate domestic spending was at work when the G20 leaders agreed in London in April 2009 to take steps to stimulate their economies. That agreement was easy to achieve, since it was in each country's interest to expand demand. The G20 ratified only what was going to happen anyway. But the G20 leaders and finance ministers nonetheless now point with pride to what they "accomplished" in London.

The same is likely to happen over the next few years as the US reduces its fiscal deficit and thereby shrinks its current-account deficit while China reduces its national saving and thereby shrinks its current-account surplus. The leaders of the G20 will no doubt claim credit for this achievement. Perhaps that is why they like to meet.


Martin Feldstein, a professor of economics at Harvard, was chairman of US president Ronald Reagan's Council of Economic Advisers and is a former president of the National Bureau for Economic Research

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