We document the emergence of a disconnect between mortgage and Treasury interest rates in the summer of 2003. Following … the end of the Federal Reserve expansionary cycle in June 2003, mortgage rates failed to rise according to their … historical relationship with Treasury yields, leading to significantly and persistently easier mortgage credit conditions. We …

We document the emergence of a disconnect between mortgage and Treasury interest rates in the summer of 2003. Following … the end of the Federal Reserve's expansionary cycle in June 2003, mortgage rates failed to rise according to their … historical relationship with Treasury yields, leading to significantly and persistently easier mortgage credit conditions. We …

. -- mortgage finance ; securitization ; regression discontinuity design ; difference-in-differences …Fixed-rate mortgages (FRMs) dominate the U.S. mortgage market, with important consequences for household risk … management, monetary policy, and systemic risk. In this paper, we show that securitization is a key driver of FRM supply. Our …