History creates comprehensibility primarily by arranging facts meaningfully and only in a very limited sense by establishing strict causal connections. ↗
The real challenge was to model all the interest rates simultaneously, so you could value something that depended not only on the three-month interest rate, but on other interest rates as well. ↗
While I have some regrets that this is my last opportunity to deliver a State of the State address, I appreciate and am humbled by the opportunities this great state has given me. ↗
In the interest rate area, traders have for a long time used a version of what is known as Black's model for European bond options; another version of the same model for caps and floors; and yet another version of the same model for European swap options. ↗
The problem with interest rates are that you are not modeling a single number, you are modeling a whole term structure, so it is a sort of different type of problem. ↗