Question

Explain the exponentially weighted moving average (EWMA) model for estimating volatility from historical data. 

   Explain the exponentially weighted moving average (EWMA) model for estimating volatility from historical data.
Options, Futures, and Other Derivatives
Options, Futures, and Other Derivatives
John C. Hull 10th Edition
Chapter 23, Problem 1 ↓

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Start with a set of historical data points representing the returns or changes in a financial asset's price over a specific time period.  Show more…

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Explain the exponentially weighted moving average (EWMA) model for estimating volatility from historical data.
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