(Bloomber) The Fed, led by Chairman Ben S. Bernanke, will announce another round of large-scale asset purchases when policy makers meet next week after deploying $1.7 trillion to pull the economy out of the financial crisis, according to a survey of the 18 primary dealers that trade debt with the central bank. Fed officials, who already cut interest rates almost to zero, are discussing more purchases of Treasuries to flood markets with cheap money as well as strategies for raising inflation expectations to prevent stagnating prices from undermining the recovery.