The U.S. Federal Reserve and other central banks teamed up to get hundreds of billions in fresh funds to cash-starved credit markets, allowing financial firms to use home mortgages as collateral.

Stocks surged and bonds fell in reaction to the moves, in a sign that the financial markets saw the plan as a viable remedy to ease a crisis that has threatened world economic growth. The
Dow industrials lurched 250-points higher at the start of trading.