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Olduvai III: Catacylsm
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Why Models Fail

Why Models Fail   QUESTION: Mr. Armstrong; Did AIG use the Black-Scholes Model and that is what created the crisis again in 2007? WJ ANSWER: No. It’s my understanding that AIG developed different models, they called a “Value-at-Risk Model,” (VaR) which used a binomial-expansion-technique to start valuing their positions. I believe the original model was developed at Moody’s. However, […]

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Olduvai IV: Courage
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Olduvai II: Exodus
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