Quote – Peter Wallison, AEI Online

The important question, however, is not the default rates on the mortgages made under the CRA. Whatever those rates might be, they were not sufficient to cause a worldwide financial crisis. Once these standards were relaxed--particularly allowing loan-to-value ratios higher than the 80 percent that had previously been the norm--they spread rapidly to the prime market and to subprime markets where loans were made by lenders other than insured banks.