New federal restrictions on mortgage broker compensation will likely add momentum to the shift away from wholesale mortgage production programs and ultimately dampen MBS prepayment speeds, according to an analysis by Barclays Capital. Most major primary market lenders have been moving away from the broker market since the housing sector began to crumble in 2007. According to Inside Mortgage Finance, an affiliated newslet-ter, the broker share of new mortgage originations peaked in 2005 at 31.3 percent of primary market lending. Between 2005 and 2007, brokers accounted...