WASHINGTON - If the world's investors are right, the Federal Reserve is about to take a bold new step to try to invigorate the U.S. economy.
And many expect the Fed to unleash its most potent weapon: a third round of bond purchases meant to ease long-term interest rates and spur borrowing and spending. It's called "quantitative easing," or QE.
Others foresee a more measured response when the Fed ends a two-day policy meeting today. They think it will extend its timetable for any rise in record-low short-term rates beyond the current target of late 2014 at the earliest.
Fed officials began their discussions Wednesday and will end with an announcement of any decision at about 12:30 p.m. EDT today. Later, Chairman Ben Bernanke will hold his quarterly news conference.
The stock market edged higher Wednesday, partly in anticipation of Fed action and after the highest court in Germany cleared the way for that country to contribute to Europe's rescue fund to help indebted governments.
The Fed is facing pressure to act now because the U.S. economy is still growing too slowly to reduce high unemployment. The unemployment rate has topped 8 percent every month since the Great Recession officially ended more than three years ago.
In August, job growth slowed sharply. The unemployment rate did fall to 8.1 percent from 8.3 percent, but that was because many Americans stopped looking for work and were no longer counted as unemployed.
Chronic high unemployment was a theme Bernanke spotlighted in a speech to an economic conference in Jackson Hole, Wyo., late last month. He argued that QE and other unorthodox Fed actions had helped ease borrowing costs and boosted stock prices. Higher stock prices increase Americans' wealth and confidence, and typically lead individuals and businesses to spend more.
In his speech, Bernanke cited research showing that the two previous rounds of QE had created 2 million jobs and accelerated economic growth. Still, he said persistently weak hiring remains "a grave concern" that inflicts "enormous suffering."
His remarks sent a clear signal that the Fed will do more. "He had a sense of urgency in that Jackson Hole speech," said David Jones, chief economist at DMJ Advisors. "I think he is convinced that there is a need to do something."
Some critics, inside and outside the Fed, remain opposed to further bond buying. They fear that by pumping so much cash into the financial system, the Fed is raising the risk of high inflation in the future. And many don't think more bond purchases would help anyway because interest rates are already near record lows.
Some economists who doubt the Fed is about to begin more bond buying say the European Central Bank has eased some pressure on the Fed. Last week, the ECB announced a plan to buy unlimited amounts of government bonds to help lower borrowing costs for countries struggling with debts.
Some think the Fed might be reluctant to launch a bond-buying program in the final two months of the presidential campaign. Many Republicans have been critical of the Fed's unconventional methods to boost the economy. After the financial crisis struck in 2008, the Fed bought more than $2 trillion in Treasury and mortgage-backed securities.
The Fed "is already a campaign issue, and enlarging its balance sheet will make it even more of one," said Vincent Reinhart, chief economist at Morgan Stanley and a former top economist at the Fed.
Reinhart thinks the Fed will prefer to wait until at least December before announcing more bond buying.
By then, he said, the Fed will have reviewed more employment data, the effect of Europe's debt crisis on the U.S. economy will be better known and Congress' plans for addressing a U.S. fiscal crisis at year's end will be clearer.