The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic

In this index study, the relationships between Stoxx Europe 600 and sector indices are analyzed. This research uses DCoVar and MES as analytical tools developed as a measure of systemic risk and applied to financial institutions, to sectoral subindexes. For the sake of systemic risk assessment we c...

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Main Authors: Henryk Gurgul, Robert Syrek
Format: Article
Language:English
Published: AGH UNIVERSITY PRESS 2022-07-01
Series:Managerial Economics
Online Access:https://journals.agh.edu.pl/manage/article/view/4915
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author Henryk Gurgul
Robert Syrek
author_facet Henryk Gurgul
Robert Syrek
author_sort Henryk Gurgul
collection DOAJ
description In this index study, the relationships between Stoxx Europe 600 and sector indices are analyzed. This research uses DCoVar and MES as analytical tools developed as a measure of systemic risk and applied to financial institutions, to sectoral subindexes. For the sake of systemic risk assessment we calculate the dynamic correlation model with bivariate t copula distribution. We focus on the impact of sectors on the market. Despite the similarity between the time series plots of both measures, with maximum values on similar days, the compatibility of daily rankings, measured as a percentage of concordant pairs, is equal to about 50%. The rankings of the most and least risky sectors are different and depend on the choice of measure, but in the case of both we observe poor stability. When sectors are ranked in terms of the highest and lowest mean values at specific intervals (designated by the structural break estimation method, which surpisingly detects very similar dates of structural changes) we draw the same conclusions. For both measures we note huge percentage changes in mean values of risk, especially in the period from February 24, 2020 till August 20, 2020 with respect to the previous period. The percentage changes for both intervals indicate the same most risky sectors, but the indications of both measures are not consistent.
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spelling doaj-art-cfe42c6a41d342c4ab6ed1a695ee68a42024-12-19T16:06:32ZengAGH UNIVERSITY PRESSManagerial Economics1898-11432353-36172022-07-0122210.7494/manage.2021.22.2.73The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemicHenryk Gurgul0Robert Syrek1AGH University of Science and Technology in Cracow, Department of Applications of Mathematics in EconomicsJagiellonian University in Cracow, Institute of Economics, Finance and Management In this index study, the relationships between Stoxx Europe 600 and sector indices are analyzed. This research uses DCoVar and MES as analytical tools developed as a measure of systemic risk and applied to financial institutions, to sectoral subindexes. For the sake of systemic risk assessment we calculate the dynamic correlation model with bivariate t copula distribution. We focus on the impact of sectors on the market. Despite the similarity between the time series plots of both measures, with maximum values on similar days, the compatibility of daily rankings, measured as a percentage of concordant pairs, is equal to about 50%. The rankings of the most and least risky sectors are different and depend on the choice of measure, but in the case of both we observe poor stability. When sectors are ranked in terms of the highest and lowest mean values at specific intervals (designated by the structural break estimation method, which surpisingly detects very similar dates of structural changes) we draw the same conclusions. For both measures we note huge percentage changes in mean values of risk, especially in the period from February 24, 2020 till August 20, 2020 with respect to the previous period. The percentage changes for both intervals indicate the same most risky sectors, but the indications of both measures are not consistent. https://journals.agh.edu.pl/manage/article/view/4915
spellingShingle Henryk Gurgul
Robert Syrek
The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
Managerial Economics
title The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
title_full The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
title_fullStr The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
title_full_unstemmed The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
title_short The dependencies of subindexes of Stoxx 600 during the Covid-19 pandemic
title_sort dependencies of subindexes of stoxx 600 during the covid 19 pandemic
url https://journals.agh.edu.pl/manage/article/view/4915
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