Supervisors have also observed that lenders are increasingly combining nontraditional mortgage loans with weaker mitigating controls on credit exposures--for example, by accepting less documentation in evaluating an applicant's creditworthiness and not evaluating the borrower's ability to meet increasing monthly payments when amortization begins or when interest rates rise. These "risk layering" practices have become more and more prevalent in mortgage originations.
I wish you an interesting and fruitful conference. 6  BIS central bankers’ speeches