A study is presented that shows that interest rate spreads and loan surveys should be interpreted carefully when assessing the availability of credit and its impact on the economy. This is especially true of interest rate spread indicators, some of which reflect prepayment, liquidity, or default risk premiums that have different economic implications. It can be helpful to decompose spreads before drawing economic inferences from the structure of interest rates. Spreads between yields on non-top-grade private-sector bonds and Treasury bonds, in particular, have a large prepayment premium in addition to a time-varying default risk premium. It is also important to recognize that even some decomposed spreads include more than one type of risk premium. In this regard, a widening of some yield spreads that contain a small default risk component, such as the Aaa-Treasury spread, could reflect a rise in prepayment or liquidity risk premiums, whose magnitudes may be hard to identify separately.