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"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."
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"We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win."

"In working class districts, you had several families living together in the one house, and it was very difficult to get a house, because the politicians who controlled housing were doing so in a very discriminatory fashion."

"If you escape from a necessary fight, pray you will live long enough to wait for and deal with the same challenge that must be settled."

"Have they known scorn like youFive cellars down?"

"Just as a puppy can be more of a challenge than a gift, so too can the holidays."
Explore more quotes by John Hull

"Alan White and I spent the next two or three years working together on this. We developed what is known a stochastic volatility model. This is a model where the volatility as well as the underlying asset price moves around in an unpredictable way."

"Briefly speaking, our conclusion is that stochastic volatility does not make a huge difference as far as the pricing is concerned if you get the average volatility right. It makes a big difference as far as hedging is concerned."

"Our starting point then was trying to find a way to incorporate mean reversion into the HoLee model."

"Yes, our tree has an interesting shape. The center branches reflect the shape of the zero curve. When extreme parts of the tree are reached the branching pattern changes to accommodate the mean reversion."
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