Moody’s Investors Service this week announced a proposed update to its rating criteria for jumbo mortgage-backed securities. Under the proposed criteria, collateral modeling will be based on a new version of Moody’s Individual Loan Analysis tool as opposed to the portfolio analysis tool Moody’s has used since 2008. Navneet Agarwal, a managing director at Moody’s, said the proposed changes set “a new standard for transparency” ... [Includes six briefs]