The transition to a housing market not completely dominated by agency financing will result in higher costs for borrowers, according to some industry participants at the American Securitization Forum annual conference held this week in Las Vegas. Even proposed risk sharing between non-agency mortgage-backed security investors and the government-sponsored enterprises is cause for concern.“I just don’t see it working all that well,” said Garry Cipponeri, a senior vice president and director of capital markets at Chase Mortgage Banking. He suggested that risk sharing could ultimately...