In our previous post, we considered balance sheet mechanics related to the Federal Reserve’s purchase and redemption of Treasury securities. These mechanics are fairly straightforward and help to illustrate the basic relationships among actors in the financial system. Here, we turn to transactions involving agency mortgage-backed securities (MBS), which are somewhat more complicated. We focus particularly on what happens when households pay down their mortgages, either through regular monthly amortizations or a large payment covering some or all of the outstanding balance, as might occur with a refinancing.
Rich Podjasek, Linsey Molloy, Michael J. Fleming, and Andreas Fuster Mortgage-backed securities guaranteed by the government-backed entities Fannie Mae, Freddie Mac, and Ginnie Mae, or so-called “agency MBS,” are the primary funding source for U.S. residential housing. A significant deterioration in the liquidity of the MBS market could lead investors to demand a premium for […]