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BİST100 Endeksinin Covid 19 Öncesi ve Covid 19’la Mücadele Sürecinde Volatilite Yapısının İncelenmesi
2020
Journal:  
Journal of Current Researches on Business and Economics
Author:  
Abstract:

Bu çalışma BİST100 endeksinin COVİD 19 öncesi ve COVİD 19’ la mücadele sürecinde getiri volatilitesinin modellenmesi amaçlanmıştır. COVID 19 küresel salgının finansal varlık riskliliğinin ve fiyat değişimlerindeki belirsizliğin en temel göstergelerinden biri olan volatiliteyi etkilerinin araştırması için 02 Eylül 2019-09 Nisan 2020 tarihleri kapsayan BİST100 endeksi günlük verileri kullanılmıştır. Endeks verilerinin simetrik ve asimetrik durumları ARCH, GARCH, TGARCH ve EGARCH modelleri ile araştırılmıştır. Ele alınan süreçte BİST100 endeksi volatilitesi için en iyi modelin EGARCH(1,1) olduğu belirlenmiştir ve kaldıraç etkisi vardır. Ele alınan dönemde BİST100 endeksinde olumsuz haberlerin volatiliteyi daha fazla arttığını söylenebilir. BİST100 endeks meydana gelen negatif şok, pozitif şoktan daha etkilidir.

Keywords:

Review of the volatility structure in the process of fighting Covid 19 and Covid 100 Index
2020
Author:  
Abstract:

This study aims to model the return volatility of the BIST100 index before COVID 19 and COVID 19' in the fighting process. For the study of the effects of volatility, which is one of the main indicators of the financial asset risk and uncertainty in price changes of the COVID 19 global epidemic, the daily data of the BIST100 index covering the dates of 02 September 2019-09 April 2020 were used. The symmetrical and asymmetrical conditions of the index data have been studied with the ARCH, GARCH, TGARCH and EGARCH models. The best model for the BIST100 index volatility is EGARCH(1.1) and has a lifting effect. In the period undertaken, it can be said that negative news in the BIST100 index increased volatility more. The negative shock that occurs is more effective than the positive shock.

Keywords:

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Journal of Current Researches on Business and Economics

Field :   Sosyal, Beşeri ve İdari Bilimler

Journal Type :   Uluslararası

Metrics
Article : 119
Cite : 71
2023 Impact : 0.065
Journal of Current Researches on Business and Economics