The "shadow inventory" of distressed homes kept off the market by lenders remains high in many markets, meaning a flood of supply still threatens to overwhelm declining demand.
低价房产的隐形库存阻碍着市场，很多市场中的贷方数量居高不下，意味着仍存在供过于求的危险。
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Their origins lie in 2004, when some of the big subprime lenders began to compete hard for market share.