Market Angry About Yellen's "Is NIRP Legal" Confusion

Just as we detailed last week, and it appears Rep. Hensarling has been reading... To wit:
"There are several potentially substantial legal and practical constraints to implementing a negative IOER rate regime, some of which would be binding at any IOER rate below zero, even a rate just slightly below zero. Most notably, it is not at all clear that the Federal Reserve Act permits negative IOER rates, and more staff analysis would be needed to establish the Federal Reserve’s authority n this area."