Those markets have been dysfunctional since Lehman Brothers Holdings Inc. went bankrupt in September, scaring away investors who normally buy bonds from seemingly creditworthy borrowers.

• 自从雷曼兄弟公司9月份倒闭后，这些市场已经机能失调，把那些通常会向那些看上去值得信赖的借款人那里购买债券的投资者全部吓退。