Valuations and Pricing of Asset Backed Securities (ABS)

I will be attending ABS East in Miami, Oct. 25-27, to assess the potential of the asset backed securities (ABS) valuation and pricing market.

The demise of Bear Stearns and Lehman Brothers and the restructuring of other investment banks not only created a dislocation in the trading market for ABS but also a dislocation in the pricing and valuation of ABS for investors such hedge funds, banks and pension funds who had depended on those investment banks and market-makers for their monthly net asset value (NAV) pricing.

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Comments

[WY]

Are there changes in model used in valuation and pricing of ABS discussed in ABS East ?
A revamp in model may be needed as it may have failed miserably during the subprime crisis.
Hope you can shed some lights.