The Federal Reserve will amplify record accommodation tomorrow by announcing $45 billion in monthly Treasury buying that will push its balance sheet almost to $4 trillion, according to a Bloomberg survey of economists. Forty-eight of 49 economists predict the Federal Open Market Committee will purchase Treasuries to bolster an existing program to buy $40 billion in mortgage bonds each month. The panel pledged in October to continue that plan until the labor market improves “substantially.” “It’s going to be massive and open-ended in size,” said Joseph LaVorgna, chief U.S. economist at Deutsche Bank Securities Inc. in ... (full story)