In this example, we considered six-month forward rates. We can consider forward rates that rule for different periods, for example 1-year, or 3-month or two-week forward rates. In the limit, as the period of the loan considered tends to zero, we arrive at the instantaneous forward rate. Instantaneous forward rates are a stylised concept that corresponds to the notion of continuous compounding, and are commonly used measures in financial markets. Instantaneous forward rates are the building block of our estimated yield curves, from which other representations can be uniquely derived
