The Federal Housing Finance Agency is set to take a comprehensive view of the impact any changes to the government-sponsored enterprises’ guaranty fees would have on the MBS market. Late last week, the regulator issued a “request for input” on the g-fees charged by Fannie Mae and Freddie Mac, prompting speculation that any changes to the fees won’t be implemented until 2015. The FHFA noted that the GSEs’ g-fees have increased from an average of 22 basis points in 2009 to 55 bps in 2013. The increases have been prompted by the FHFA along with Congress and changes made by the GSEs. Because of loan-level pricing adjustments – which in nearly all cases are rolled into the mortgage coupon – g-fees vary...[Includes one data chart]