Many Banks have been willing to roll loans over and ignore breaches of loan-to-value covenants caused by falling values (a strategy known as "extend and pretend") rather than force a sale.

许多银行很乐意贷款展期，并且忽略价值下跌所导致的贷款价值契约的违约(该策略被称作“延期并假装不知”)，而不是强行变卖。

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If it was worth more, a borrower could pay off the loan and get the stock back, roll over the loan into a larger one or ask the stock be sold and take profits.

FORBES: Magazine Article

This should mean payday lenders only roll over a loan to a customer on a maximum of three occasions.

BBC: Payday lenders' new code in place

Banks have picked up some of the slack, but many are reluctant to lend because their capital bases are already suffering from loan losses, and they are uneasy about the ability of many customers to roll over the paper.

ECONOMIST: The Federal Reserve