In exploring how to attract more private capital into the housing finance system, policymakers should permit the jumbo mortgage market to stand on its own absent a government guaranty and make any future government backing explicit, experts told members of the Senate Banking Subcommittee on Securities, Insurance and Investment this week. Given that loans over the old $417,000 conforming limit account for a quarter of the dollar volume of mortgages per year, a slow and measured hand off of this segment to private capital is a low-maintenance way to reduce the government’s mortgage footprint, according to Mark Willis, resident research fellow at the New York University Furman Center for Real Estate and Urban Policy. Inside Mortgage Finance estimates that loans exceeding $417,000 accounted for 16.8 percent of originations in 2012. “Opening up the market above $417,000 should provide...