xxcynthistxx
17.02.2020 •
Business
Suppose that the price of Asset X at close of trading yesterday was $300 and its volatility was estimated as 1.3% per day. The price of X at the close of trading today is $298. Suppose further that the price of Asset Y at the close of trading yesterday was $8, its volatility was estimated as 1.5% per day, and its correlation with X was estimated as 0.8. The price of Y at the close of trading today is unchanged at $8. Update the volatility of X and Y and the correlation between X and Y using (a) The EWMA model with 0.94. (b) The GARCH(1,1) model with = 0.000002, = 0.04, and = 0.94. In practice, is the parameter likely to be the same for X and Y?
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Ответ:
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Explanation:
Please see attachment .