May 9 (Bloomberg) -- European Union finance ministers pledged to stop a sovereign-debt crisis from shattering confidence in the euro as they held an emergency summit to
hammer out a lending mechanism that may be worth around $645
billion.

Jolted into action by last week’s slide in the currency to a 14-month low and soaring bond yields in Portugal and Spain, leaders of the 16 euro nations agreed on the backstop yesterday
and told ministers to get it ready before Asian markets open.
The European facility may be worth around 500 billion euros,
said an official familiar with the talks.

“We are going to defend the euro,” Spanish Economy Minister Elena Salgado told reporters as she arrived to chair
today’s Brussels meeting. “We think we have a duty for more
stability for our currency. We will do whatever is necessary.”

Europe’s failure to contain Greece’s fiscal crisis triggered a 4.3 percent drop in the euro last week, the biggest weekly decline since the aftermath of Lehman Brothers Holdings
Inc.’s collapse. It prompted the U.S. and Asia to urge broader
steps to prevent a debt crisis from pitching the world back into
a recession.

President Barack Obama spoke by phone with German Chancellor Angela Merkel
for the second time in three days,
adding to the international pressure Europe has faced since a
hurriedly arranged conference call of Group of Seven finance
chiefs on May 7. Obama today emphasized “the importance of the
members of the European Union taking resolute steps to build
confidence in the markets,” White House spokesman Bill Burton
told reporters in Hampton, Virginia.

‘Wolfpack Behavior’

“In the night, when the markets are opening, we cannot afford a disappointment,” said Finance Minister Anders Borg of Sweden, one of 11 EU nations not in the euro. “We now see herd
behavior in the markets that are really pack behavior, wolfpack
behavior.”

European officials declined to disclose the size of the stabilization fund, to be made up of money borrowed by the EU’s central authorities with guarantees by national governments. The
meeting started just after 3 p.m.

Expectations of decisive action buoyed the euro as trading began in Asia. It jumped more than 1 percent to $1.2897 as of 6:11 a.m. in Sydney, according to pricing from Westpac Banking
Corp.

Several Alternatives

Germany, the bloc’s largest economy, is being represented by Interior Minister Thomas de Maiziere after wheelchair-bound
Finance Minister Wolfgang Schaeuble,
67, was rushed to a
Brussels hospital due to an adverse reaction to new medication.

Part of a new lending mechanism could be based on the balance-of-payments aid model that the EU granted to Hungary, Romania and Latvia when their budgets buckled in the financial
crisis, said Jacques Cailloux,
chief European economist at Royal
Bank of Scotland Group Plc in London. The initial funding
available could be 70 billion euros, he said.

“There is some discussion about what the solution will be,” Dutch Finance Minister Jan Kees de Jager said. “There are
several alternatives at the moment.”

Separately, European Central Bank council members were slated to hold a teleconference today.

“Europe is getting its act together,” said Chris Rupkey, chief financial economist at Bank of Tokyo-Mitsubishi UFJ Ltd. in New York. “Time will tell if this statement is enough to
satisfy the European bond market vigilantes.”

Stiffest Test

Government officials said they won’t push the independent ECB to, for example, buy government bonds. President Jean-Claude Trichet accelerated the market selloff on May 6 by rejecting
that measure. Trichet is in Basel, Switzerland, today for a
scheduled meeting of central bankers from the Group of 10
nations. Vice President Lucas Papademos
is attending the
Brussels talks.

With the euro facing the stiffest test since its debut in 1999, the weekend turned into a crisis-management exercise to restore faith in the currency and prevent a European debt crisis
from cascading around the world.

The purpose is to “decide on a mechanism that enables us to assure the stability of the euro, stability in the zone and, beyond that, stability in financial markets,” French Finance
Minister Christine Lagarde
said.

The euro slid to $1.2715 from $1.3293 in the past week, and is down 15 percent since late November. European stocks sank the
most in 18 months, with the Stoxx Europe 600 Index tumbling 8.8
percent to 237.18.

Stability

The extra yield that investors demand to hold Greek, Portuguese and Spanish debt instead of benchmark German bonds
rose to euro-era highs. The premium on 10-year government bonds
jumped as high as 973 basis points for Greece, 354 basis points
for Portugal and 173 basis points for Spain.

Britain, the EU’s third-largest economy, won’t contribute to a fund to shore up euro countries, though it backs efforts to restore stability, Chancellor of the Exchequer Alistair Darling
said.

“When it comes to supporting the euro, that is for the eurogroup countries,” Darling told Sky News. “We need to show again today that by acting together we can stabilize the
situation.”

At yesterday’s leaders’ summit in Brussels, Germany stepped up calls for a closer monitoring of government finances and more rigorous enforcement of the deficit-limitation rules.

The vow to push budget shortfalls below the euro’s 3 percent limit echoes promises that have been regularly broken ever since governments in 1999 set a three-year deadline for
achieving balanced budgets. The euro region’s overall deficit is
forecast at 6.6 percent of gross domestic product in 2010 and
6.1 percent in 2011.

Consideration

Plans for a European credit-rating authority are already under consideration at the European Commission, the bloc’s Brussels-based executive agency. It also is investigating
whether ratings companies such as Standard & Poor’s wield too
much power over investors’ perceptions of governments.

Asked whether steps to stem speculation against government bonds would include restrictions on short sales or credit default swaps, European Commission President Jose Barroso
said
“some of the points you have mentioned will be contemplated.”

The political leadership of the $12 trillion economy yesterday also signed off on a 110 billion-euro ($140 billion) aid package for Greece negotiated by finance ministers last
week. So far nine governments have cleared the way for funds to
be sent to Athens.

To contact the reporters on this story: James G. Neuger in Brussels at
popwSendEmail( this ))"">jneuger@bloomberg.net;
Meera Louis in
Brussels at
popwSendEmail( this ))"">mlouis1@bloomberg.net.