Borrower behavior changes over time and investors and lenders should constantly adjust the way they utilize the different credit score values to accurately predict loan performance, according to officials from FICO and VantageScore.

"The number one message FICO would like to convey is that FICO scores will always rank order risk across consumers, markets and products," said Joanne Gaskin, a director at FICO. "What will change is the ratio of the number of performing and nonperforming loans. What the lender has to understand is that a 720 FICO may not perform exactly the same over each and every market cycle."

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