Suppose an investment bank is trying to sell BBB rated mortgage-backed securities, with an 8% yield, to two classes of investors: (1) pension fund managers and (2) hedge fund managers. However, neither class of investors wants to purchase the securities. Pension fund managers think the securities are too risky for their low-risk portfolios, and hedge fund managers are willing to take the risk on the securities, but they feel that the yield is too low for their portfolios.