John Hull Quotes & Sayings
19 most famous John Hull quotes and sayings (mathematician). These are the first 10 quotes we have.
“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.”
“I didn't become interested in derivatives until 1982, 1983.”
“I guess any simple idea that is really good will catch on quickly.”
“I think VAR is a very healthy development within the industry.”
“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.”
“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.”
“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.”
“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.”
“We concluded that you cannot rely on delta hedging alone. It sounds simplistic to say that now, but back then, this was the sort of thing people were only just beginning to realize.”
“Our research led on to other things, such as the fact that exchange rates are not lognormally distributed.”
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