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NEW YORK -- For loss forecasting on subprime mortgages, some organizations rely too heavily on models, while others only rely on its management's intuition. The best loss forecasting comes from some sort of combination of the two, said a presenter from Deloitte & Touche during a presentation from the firm called "Subprime Consumer Finance: Know Your Blind Spots for 2007."
Niall Lynas said that a sound loss forecasting process includes such issues as pricing and underwriting; an allowance for loan and lease losses; the expected loss, calculated using the process established under Basel II; the collections workflow; a portfolio valuation; and management reporting.
But when using a model, it is important to remember that a statistical model is only as good as the data it was built on and many do not account for current conditions in the market. He gave some reasons why this ...