This week, following the fifth anniversary of the Lehman Brothers' bank collapse, world stockmarkets reacted with relief at news that the United States economy will remain on the life support of new money printed by the US Federal Reserve. A gradual withdrawal of "quantitative easing" had been expected since May when Fed chairman Ben Bernanke said the US was showing signs of strength and he might start reducing the stimulant later in the year.
This week, he announced he had changed his mind. Any relief at this decision is extremely short-sighted. Five years is a long time for the world's largest economy to depend on a monthly injection of US$85 billion ($101.47 billion). Whenever this drip is withdrawn the patient is likely to suffer some pains of adjustment such as those that have caused Mr Bernanke to change his mind.
Sooner or later it will have to be withdrawn. There are fears even the strongest of economies cannot keep printing currency at this rate without building inflationary pressure that will find a release in consumer prices or another bubble in asset values. The longer this goes on, the greater that pent-up pressure may be.
Mr Bernanke is a scholarly expert on the Great Depression. That knowledge was no doubt useful when the global financial crisis struck in 2008. Lehman was not the first Wall Street bank to suffer but it was the first not to be rescued. Its collapse sent the financial system into a seizure, inviting comparisons with the crash of 1929 and the depression that followed.