Kroszner, Randall

The paucity and inaccessibility of data about the underlying home loans was, in my opinion, one of the reasons that private-label MBS was able to expand so rapidly in 2005 and 2006 despite a deterioration in underwriting and prospective credit performance. That is not to say that better data would necessarily have led investors to completely sidestep the private-label MBS that have caused them so much difficulty. But I do think it was a significant hindrance that the information needed to infer, in real time, the extent to which subprime and alt-A mortgage underwriting was sliding simply did not exist in a form that allowed the widespread scrutiny or objective analyses needed to bring these risks more clearly into focus.

Thus, I believe that markets for private-label MBS are unlikely to recover unless comprehensive and standardized data for home mortgage pools are made widely available to market participants.