The Big Picture Thu 2009-11-19 10:50 EST
Recent Developments in Mortgage Finance
As the U.S. housing market has moved from boom in the middle of the decade to bust over the past two years, the sources of mortgage funding have changed dramatically. The government-sponsored enterprises--Fannie Mae, Freddie Mac, and Ginnie Mae--now own or guarantee an overwhelming share of originations. At the same time, non-agency mortgage securitization and loans retained in lender portfolios have largely dried up.