Former Federal Reserve chairman Alan Greenspan has called the recent
turmoil in the global financial markets a "once in a century credit
tsunami".
Speaking before Congress, Mr Greenspan, who stood down as Fed chairman
in 2006, said the crisis had left him "in a state of shocked
disbelief".
He added that recovery in the US housing market was "many months" away.
However critics said Mr Greenspan could have boosted regulation of the markets to help prevent the crisis.
Regulation
Mr Greenspan made the comments to the House of Representatives Committee on Oversight and Government Reform.
Committee chairman Henry Waxman, a Democrat, suggested that Mr
Greenspan had added to the problem by rejecting calls for the Fed to
regulate the sub-prime sector and some complex, risky financial
products.
"The list of regulatory mistakes and misjudgements is long," Mr Waxman said.
"Our regulators became enablers rather than enforcers. Their
trust in the wisdom of the markets was infinite," he added, saying that
the mantra became "government regulation is wrong".
One of the main criticisms against Mr Greenspan was that he
left interest rates too low for too long, thereby fuelling the housing
boom - which later turned out to be unsustainable.
However the former bank boss said he had made a "partially"
wrong decision in thinking that relying on banks to use their
self-interest would be enough to protect shareholders and their equity.
He acknowledged that his approach had had a "flaw" that had
been shocking "because I'd been going for 40 years or more with very
considerable evidence that it was working exceptionally well.''
Government efforts
Mr Greenspan's comments come as significant uncertainty remains in
global markets, amid fears that key economies have already entered a
recession.
Some share markets and currencies have been especially
volatile, prompting intervention by governments to prop up banks and
boost the financial sector.
Recent developments include:
- Russia
has moved to boost its currency in the wake of a sharp slide in oil
prices and declines in foreign investments. In the past week gold and
foreign reserves are down $15bn (£9.3bn)
- French President
Nicolas Sarkozy on Thursday mooted setting up a state-run investment
fund to help protect national firms and aid small firms in difficulty
- Sweden's
central bank tried to boost its economy by cutting interest rates by
half a percentage point to 3.75% and said it planned to make further
cuts within six months
- Hungary unexpectedly increased its
interest rate by three percentage points to 11.5% on Wednesday in a bid
to boost its currency, the forint
Earlier, some Asian indexes saw sharp falls, as investors worried about the prospect of a global recession.
South Korea's Kospi index was down 7.4%, its lowest close since July
2005, while Hong Kong's Hang Seng index was down 4.7%, at its lowest
level since April 2005.
However, after a volatile session, the London FTSE 100 index
ended up 1.16%, while France's Cac 40 rose 0.38% and Germany's Dax fell
1.13%.
Taking flight
South Korea is one of a number of countries that has recently
seen a substantial withdrawal of capital as worried investors take
their money out.
The phenomenon, which is also affecting others nations
including Hungary, Iceland and Pakistan, represents a new and worrying
phase of the financial crisis according to the BBC's business editor
Robert Peston.
He says that we are seeing a massive flight of capital out of
economies perceived to have been living beyond their means - either
because they have a substantial reliance on foreign borrowings or
because they are net importers of good and services, or both.