The global financial system as it is currently constituted is characterised by a pernicious asymmetry. The financial authorities of the developed countries are in charge and they will do whatever it takes to prevent the system from collapsing. They are, however, less concerned with the fate of countries at the periphery. As a result, the system provides less stability and protection for those countries than for the countries at the centre. This asymmetry - which is enshrined in the veto rights the US enjoys in the International Monetary Fund, explains why the US has been able to run up an ever-increasing current account deficit over the past quarter of a century. The so-called Washington consensus imposed strict market discipline on other countries but the US was exempt from it.

The emerging market crisis of 1997 devastated the periphery such as Indonesia, Brazil, Korea and Russia but left America unscathed. Subsequently, many peripheral countries followed sound macroeconomic policies, once again attracting large capital inflows, and in recent years have enjoyed fast economic growth. Then came the financial crisis, which originated in the US. Until recently peripheral countries such as Brazil remained largely un-affected; indeed, they benefited from the commodity boom. But after the bankruptcy of Lehman Brothers, the financial system suffered a temporary cardiac arrest and the authorities in the US and Europe resorted to desperate measures to resuscitate it. In effect, they resolved that no other big financial institution would be allowed to default and also they guaranteed depositors against losses. This had un-intended adverse consequences for the peripheral countries and the authorities have been caught unawares. In recent days there has been a general flight for safety from the periphery back to the centre. Currencies have dropped against the dollar and the yen, some precipitously. Interest rates and credit default premiums have soared and stock markets crashed. Margin calls have proliferated and spread to stock markets in the US and Europe, raising the spectre of renewed panic.