Component Symbol DRP TRF LP Characteristic It changes over time, depending on the expected rate of return on productive assets exchanged among market participants and people's time preferences for consumption. As interest rates rise, bond prices fall, and as interest rates fall, bond prices rise. Because interest rate changes are uncertain, this premium is added as a compensation for this uncertainty. This is the premium added to the risk-free rate that reflects the average sustained increase in the general level of prices for goods and services expected over the security's entire life This is the difference between the interest rate on a US Treasury bond and a corporate bond of the same profile--that is, the same maturity and marketability. This premium is added when a security lacks marketability, because it cannot be bought and sold quickly without losing value. This is the rate for a riskless security that is exposed to changes in inflation. - MRP IP