Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation

The existence of structural breaks and outliers are two components commonly appear in volatility data, especially in financial data. However, their presence is often treated separately using different methods. This led to inconsistent results due to different assumptions and procedures involved. The...

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Published in:Studies in Systems, Decision and Control
Main Author: Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
Format: Book chapter
Language:English
Published: Springer Science and Business Media Deutschland GmbH 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140216176&doi=10.1007%2f978-3-031-04028-3_42&partnerID=40&md5=3890f5e93a6135734d3bf7f15d30e2eb
id 2-s2.0-85140216176
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Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
2022
Studies in Systems, Decision and Control
444

10.1007/978-3-031-04028-3_42
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140216176&doi=10.1007%2f978-3-031-04028-3_42&partnerID=40&md5=3890f5e93a6135734d3bf7f15d30e2eb
The existence of structural breaks and outliers are two components commonly appear in volatility data, especially in financial data. However, their presence is often treated separately using different methods. This led to inconsistent results due to different assumptions and procedures involved. The study presents simulation results based on the GARCH model to simultaneously detect structural breaks and outliers in high-frequency volatility data using the recent procedure developed by a group of researchers at Oxford University. The procedure is named impulse indicator saturation (IIS). In this study, the simulation procedure demonstrates the ability of the proposed method to capture these two components. This study is expected to eliminate the masking effects in outliers’ detection, commonly quantified as the loss of power due to more than the anticipated number of discordant observations in the sample. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
Springer Science and Business Media Deutschland GmbH
21984182
English
Book chapter

author Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
spellingShingle Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
author_facet Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
author_sort Nasi I.N.M.; Ismail M.T.; Karim S.A.A.
title Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
title_short Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
title_full Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
title_fullStr Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
title_full_unstemmed Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
title_sort Detecting Structural Breaks and Outliers for Volatility Data via Impulse Indicator Saturation
publishDate 2022
container_title Studies in Systems, Decision and Control
container_volume 444
container_issue
doi_str_mv 10.1007/978-3-031-04028-3_42
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140216176&doi=10.1007%2f978-3-031-04028-3_42&partnerID=40&md5=3890f5e93a6135734d3bf7f15d30e2eb
description The existence of structural breaks and outliers are two components commonly appear in volatility data, especially in financial data. However, their presence is often treated separately using different methods. This led to inconsistent results due to different assumptions and procedures involved. The study presents simulation results based on the GARCH model to simultaneously detect structural breaks and outliers in high-frequency volatility data using the recent procedure developed by a group of researchers at Oxford University. The procedure is named impulse indicator saturation (IIS). In this study, the simulation procedure demonstrates the ability of the proposed method to capture these two components. This study is expected to eliminate the masking effects in outliers’ detection, commonly quantified as the loss of power due to more than the anticipated number of discordant observations in the sample. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
publisher Springer Science and Business Media Deutschland GmbH
issn 21984182
language English
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