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The principal topic of hot debate in the previous week-end's IMF-World Bank meetings was the need for realignment of currencies to reduce the global imbalances (read US deficit and unemployment).
No agreement could be reached, with China standing firm on its policy of the last few months, of a more flexible exchange rate for the yuan, which, in practice, means a deliberately gradual appreciation of the currency to give time to domestic industry to adjust (the yuan has appreciated around 2.5 per cent against the dollar since June 19, but the day-to-day movements have been in both directions). The problem has now been escalated to the G20 summit in Seoul next month.
The fact is that, for some time now, countries have been taking actions to stem the rise of their currencies against the currencies of their major trading partners. For example, Switzerland and Japan, both developed economies, have intervened in the exchange market in recent times.
But the world's largest exporter, China, is at the heart of the dispute. If these are wars, they seem to be "defensive" wars - to protect the domestic real economies, which produce 95 per cent of the output and employment, from the exchange rate gyrations to which speculative capital flows can lead. Japan, clearly, has experienced these, and in spades, in the 1990s.
The dollar-yen rate gyrated from ¥147 at the beginning of the decade to around ¥80 in 1995, to ¥146 in 1998 and ¥112 in just two months thereafter! There was no significant difference in inflation rates, or current account balances of the two economies. (To be sure, Japan did undergo a banking crisis.)
The real reason is the so-called "feedback loops" that exaggerate price trends, sometimes grossly - in either direction. Basic economic theory suggests that the rise in the price of an asset should reduce the demand for it, and a fall makes it more attractive.
In practice, in financial markets, too often, higher prices of assets attract more buyers, leading to a further rise in the price - until, of course, the music stops one day.
The problem is that the cost of rate gyrations has to be borne by the real economy in terms of slow growth, recession, unemployment, and so on.
The 1990s and the last 10 years have been "lost decades" for the Japanese economy because of the gyrations in its asset prices and the exchange rate - a fact that China, always conscious of the need for social stability, and with a social security net far weaker than Japan's in the 1990s, is
There are two different strands of the issue of managing exchange rates, one philosophical and the other, more immediate, political. As for the first, the major Anglo-Saxon economies, namely the US and Britain, have been market fundamentalists for the last 30 years or so.
The philosophical or academic underpinning is provided by the Chicago School and economists like Friedrich von Hayek. It believes in the efficiency of the markets and that market prices reflect all economic fundamentals.
A corollary is that any regulatory intervention to influence the market prices can only distort them and, therefore, give a less than optimum result.
The bankruptcy of the concept of markets being always virtuous, and regulation being always sinful, was highlighted in the recent credit crisis, particularly in the two largest Anglo-Saxon economies, leading to a global recession.
Critics of managed exchange rates describe them as "manipulated" exchange rates: by that logic, I suppose every country in world was "manipulating" exchange rates from 1945 to 1970 (the fixed exchange rate era), and, in any case, is guilty of "manipulating" the domestic value of the currency (inflation) through monetary policy!
Despite all the monetary and fiscal stimuli after the crisis, unemployment in the US remains stubbornly high at near-double-digit levels, and the ruling Democrats face the prospect of a major setback in the mid-term elections.
In such a situation, it is always politically simpler to blame the foreigner: the Chinese exchange rate policy.
With China refusing to be hurried, the US Congress has passed a legislation authorising the president to impose a duty of 20 per cent on Chinese imports. It has been claimed that this would help create a million jobs. This proposition has several unstated assumptions:
