The belief spurred more mortgage underwriting because lenders assumed that borrowers living on the edge could always refinance or sell their homes for a profit if they ran into trouble.

• 这种信心带来了更多的按揭承销交易，因为贷款机构认为，如果捉襟见肘的借贷人陷入困境，总可以获得再融资或者卖房子获利。