The yield curve is a graphical representation of yields for a range of terms to maturity. For example, a yield curve might illustrate yields for maturity from one day (overnight) to 30-year terms. Typically, the rates are zero coupon government rates.

Since current interest rates reflect expectations, the yield curve provides useful information about the market’s expectations of future interest rates. Implied interest rates for forward-starting terms can be calculated using the information in the yield curve. For example, using rates for one- and two-year maturities, the expected one-year interest rate beginning in one year’s time can be determined.

The shape of the yield curve is widely analyzed and monitored by market participants. As a gauge of expectations, it is often considered to be a predictor of future economic activity and may provide signals of a pending change in economic fundamentals.

The yield curve normally slopes upward with a positive slope, as lenders/investors demand higher rates from borrowers for longer lending terms. Since the chance of a borrower default increases with term to maturity, lenders demand to be compensated accordingly.

Interest rates that make up the yield curve are also affected by the expected rate of inflation. Investors demand at least the expected rate of inflation from borrowers, in addition to lending and risk components. If investors expect future inflation to be higher, they will demand greater premiums for longer terms to compensate for this uncertainty.