WASHINGTON, D.C. - World leaders edged closer to an agreement Saturday that would flag risky investing and regulatory weak spots as President George W. Bush welcomed the progress at an emergency economic summit. | Video

Nearly two dozen foreign leaders got down to work at the largest gathering of its kind in nearly a decade. A chief goal was charting a map to avoid future financial meltdowns like the one now imperiling the global economy. Leaders also sought to find ways to revive the economy, which has pushed up unemployment and shrunk savings.

Under the glare of an intense political and public spotlight, the presidents and prime ministers needed to be careful not to let the talks become a blame game, which could further roil the fragile markets.

A thorny issue was whether all nations should pledge to enact government spending plans to stimulate their economies. It appeared likely the leaders would endorse the benefits of that approach, but stop short of a commitment for all participants to act at the same time.

To help prevent future crises, Bush and his counterparts prepared to endorse a plan for more openness in financial markets and an early warning system for problems such as the speculation frenzy that fed the U.S. housing bubble.

"I am pleased that we are discussing a way forward to make sure that such a crisis is unlikely to occur again," Bush said as discussions got under way. "Obviously, you know, this crisis has not ended. There's some progress being made, but there's still a lot more work to be done."

German Chancellor Angela Merkel told reporters that the leaders will achieve consensus on a plan "that includes almost 50 actions that have to be implemented by the end of March." She added, "There shall be no blind spots," she said. "I believe there is here a great common will to ensure that such a crisis is not repeated."

The plan would include measures aimed at making the global financial system more accountable to investors and more transparent to regulators, diplomatic officials said.

It would improve international monitoring of markets and bolster rules governing how companies value their assets, a current weakness seen as partly responsible for the financial crisis at hand. The officials spoke on condition of anonymity because leaders had yet to agree on their final statement.

A new "college of supervisors" of financial regulators from many nations was among the ideas expected in the leaders' final statement after the summit ended late Saturday.

While the emerging plan would boost oversight of fragile financial markets, it would fall short of the sweeping set of tough new regulations some Europeans want.

"These are difficult talks," said British Prime Minister Gordon Brown, who has taken a lead in pushing for a global coordination of country-by-country economic aid plans.

The Bush administration, however, has reacted coolly to a second U.S. stimulus plan and opposes a bailout of the teetering U.S. auto industry. Democrats are pushing for aid to Detroit automakers amid reports that the biggest one, General Motors Corp., could be forced into bankruptcy by the end of next month.

A follow-up summit is envisioned for the spring, after Barack Obama becomes president.

Not far from the summit at the stately National Building Museum, a handful of protesters carried neon yellow signs that read: "Money for people's needs, not bankers' greed" and "Money for jobs, not for war and occupation."

Elsewhere in the capital, hundreds turned out to demonstrate against the war, promote Tibetan independence or champion other causes. The summit did not attack the large wave of protesters as seen at some global gatherings in years past.

The World Bank president, Robert Zoellick, is among the international finance leaders who welcomed the more inclusive mix of countries - beyond the wealthiest nations - at the summit. Brazil's president, Luiz Inacio Lula da Silva, said, "Emerging economies have to be taken into consideration in today's globalized world."

Japan's prime minister, Taro Aso, urged China and others to help increase the International Monetary Fund's $250 billion bailout pool for struggling nations hit by the crisis. Japan on Friday said it was ready to put in as much as $100 billion.

The crisis broke out in the United States around August of last year. Mortgage investments soured with the housing market's collapse and the fallout quickly spread to other countries. Banks and other financial companies suffered huge losses and foreclosures skyrocketed. The troubles crimped auto and student loans and locked up lending for many consumers and businesses worldwide.

Although Obama stayed away from the summit, he designated two representatives - former Secretary of State Madeleine Albright and former Republican Rep. Jim Leach of Iowa - to meet with leaders on the sidelines.

Besides the United States, the participants are: Argentina, Australia, Brazil, Britain, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Spain and Turkey. Other than Spain, those countries - plus the European Union - make up the Group of 20 industrialized and developing economies, or G-20. The group accounts for roughly 90 percent of the global gross domestic product, which measures the value of goods and services produced worldwide.