Default risk on non-agency jumbo mortgage-backed securities continues to improve gradually, according to economic risk factors applied to Fitch Ratings’ non-agency jumbo MBS loan loss model. The rating service released the economic risk factors for the second quarter of 2012 last week. Fitch said the improvement is tied to home price trends and it expects home prices to “touch bottom” in 2013. New Jersey and New York have the highest default risk in the country, with expected defaults well above ... [Includes three briefs]