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John Hull

"I think VAR is a very healthy development within the industry."

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"I think VAR is a very healthy development within the industry."

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Asa Don Brown

"India's strength lies in her villages. Our aim is to bridge the differences between rural and urban India. We want our villages to have all the facilities that are there in the cities."

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"The purpose of education should ultimately be the advancement of the species. And for this to actually happen, the world needs the kind of education by means of which character is formed, strength of the mind is increased and the human intellect is expanded beyond its own limits."

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"Sustainable Development is more than meeting the needs of today and the future generations, to my understanding this definition better fits sex industry."

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Asa Don Brown

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Asa Don Brown

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Asa Don Brown

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Asa Don Brown

"Just imagine the strides Africa would have made if all the resources being channeled towards conflict resolution were going into construction of power generation plants and irrigation capacity. Can't we promote our own peace? What are we doing to seriously focus on other eco-friendly energy sources like wind and solar?"

Explore more quotes by John Hull

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John Hull
"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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John Hull
"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."
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John Hull
"We started giving presentations at practitioner conferences in 1986, and since then all of our derivatives research has been stimulated by contact with practitioners."
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John Hull
"There are challenges in terms of the measurement of VAR for what are known as nonlinear derivatives, where things like gamma and vega are important dimensions of the risk."
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John Hull
"When interest rates are high you want the average direction in which interest rates are moving to be downward; when interest rates are low you want the average direction to be upward."
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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."
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John Hull
"One important measurement issue concerns the fat tails problem that I mentioned earlier. VAR is concerned with extreme outcomes. If the tails of the probability distributions we are using are too thin, our VAR measures are likely to be too low."
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John Hull
"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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John Hull
"Our research led on to other things, such as the fact that exchange rates are not lognormally distributed."
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John Hull
"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."
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