Change-point detection for expected shortfall in time series

Expected shortfall (ES) is a popular risk measure and plays an important role in risk and portfolio management. Recently, change-point detection of risk measures has been attracting much attention in finance. Based on the self-normalized CUSUM statistic in Fan, Glynn and Pelger (2018) and the Wild B...

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Auteurs principaux: Lingyu Sun, Dong Li
Format: article
Langue:EN
Publié: KeAi Communications Co., Ltd. 2021
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C12
C22
C32
Accès en ligne:https://doaj.org/article/3e4171cdc47246158df735e2bb78d00d
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spelling oai:doaj.org-article:3e4171cdc47246158df735e2bb78d00d2021-11-10T04:24:33ZChange-point detection for expected shortfall in time series2096-232010.1016/j.jmse.2021.06.002https://doaj.org/article/3e4171cdc47246158df735e2bb78d00d2021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2096232021000391https://doaj.org/toc/2096-2320Expected shortfall (ES) is a popular risk measure and plays an important role in risk and portfolio management. Recently, change-point detection of risk measures has been attracting much attention in finance. Based on the self-normalized CUSUM statistic in Fan, Glynn and Pelger (2018) and the Wild Binary Segmentation (WBS) algorithm in Fryzlewicz (2014), this paper proposes a variant WBS procedure to detect and estimate change points of ES in time series. The strengthened Schwarz information criterion is also introduced to determine the number of change points. Monte Carlo simulation studies are conducted to assess the finite-sample performance of our variant WBS procedure about ES in time series. An empirical application is given to illustrate the usefulness of our procedure.Lingyu SunDong LiKeAi Communications Co., Ltd.articleC12C22C32Industrial engineering. Management engineeringT55.4-60.8ENJournal of Management Science and Engineering, Vol 6, Iss 3, Pp 324-335 (2021)
institution DOAJ
collection DOAJ
language EN
topic C12
C22
C32
Industrial engineering. Management engineering
T55.4-60.8
spellingShingle C12
C22
C32
Industrial engineering. Management engineering
T55.4-60.8
Lingyu Sun
Dong Li
Change-point detection for expected shortfall in time series
description Expected shortfall (ES) is a popular risk measure and plays an important role in risk and portfolio management. Recently, change-point detection of risk measures has been attracting much attention in finance. Based on the self-normalized CUSUM statistic in Fan, Glynn and Pelger (2018) and the Wild Binary Segmentation (WBS) algorithm in Fryzlewicz (2014), this paper proposes a variant WBS procedure to detect and estimate change points of ES in time series. The strengthened Schwarz information criterion is also introduced to determine the number of change points. Monte Carlo simulation studies are conducted to assess the finite-sample performance of our variant WBS procedure about ES in time series. An empirical application is given to illustrate the usefulness of our procedure.
format article
author Lingyu Sun
Dong Li
author_facet Lingyu Sun
Dong Li
author_sort Lingyu Sun
title Change-point detection for expected shortfall in time series
title_short Change-point detection for expected shortfall in time series
title_full Change-point detection for expected shortfall in time series
title_fullStr Change-point detection for expected shortfall in time series
title_full_unstemmed Change-point detection for expected shortfall in time series
title_sort change-point detection for expected shortfall in time series
publisher KeAi Communications Co., Ltd.
publishDate 2021
url https://doaj.org/article/3e4171cdc47246158df735e2bb78d00d
work_keys_str_mv AT lingyusun changepointdetectionforexpectedshortfallintimeseries
AT dongli changepointdetectionforexpectedshortfallintimeseries
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