You may have to treat this "...... because of increased uncertainty in yields" as background info.given.
ie, when there is a situation that uncertain yiels on corporate bonds, it normally means weaken economic secor and bonds may default. investors are more worried than relaxed even when interest rate is moderately ajusted down.
Whereas MBS is collaterized. It's more related to housing sector, not likely to default only because economy is weaker. |