d4) Assume that the MLIK100 Index at close of trading yesterday was 4,000 and the daily volatility of the index was estimated as 0.8% per day at that time. The parameters in a GJR GARCH model are ω = 0.000005, α = 0.08, = 0.04 and β = 0.92. Where is the asymmetry parameter. If the MLIK100 moves by 50 points by close of trading today, what will the new volatility estimate be, per day, if the move is an increase or a decrease?

EBK CONTEMPORARY FINANCIAL MANAGEMENT
14th Edition
ISBN:9781337514835
Author:MOYER
Publisher:MOYER
Chapter8: Analysis Of Risk And Return
Section: Chapter Questions
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d4) Assume that the MLIK100 Index at close of trading yesterday was 4,000 and the daily volatility of the index was estimated as 0.8% per day at that time. The parameters in a GJR GARCH model are ω = 0.000005, α = 0.08, = 0.04 and β = 0.92. Where is the asymmetry parameter. If the MLIK100 moves by 50 points by close of trading today, what will the new volatility estimate be, per day, if the move is an increase or a decrease?
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