Study of Shock and Volatility Spillovers among Selected Indices of the Tehran Stock Exchange Using Asymmetric BEKK-GARCH Model

Document Type : Research Article

Authors

1 PhD student of Economics, Department of Economics, Faculty of Economics and management, urmia university, Urmia, Iran

2 Department of Economics, Faculty of Economics and management, Urmia university, Urmia, Iran

3 Prof of Economics, Department of Economics, Faculty of Economics and management, urmia university, Urmia, Iran

4 Lecturer in Economics Faculty, Kharazmi University, Tehran, Iran

Abstract

The main objective of this study is to investigate shock spillovers and volatility over the selected indexes of Tehran Stock Exchange including the automotive and parts manufacturing group, banking group and oil products group in the period of 13th December, 2008 to 21th November, 2017. In order to that, MS-VAR model and Asymmetric BEKK have used. The results showed evidence of standard leverage in both regimes, as The results in the zero-order regime indicate the interaction of the Shocks and volatilities of each group on the Shocks and volatilities of other groups, and the past volatilities of each group relative to the past Shocks of that group contributed to the current volatility of that group in the zero-order regime. The results in first regime also showed that the news of the oil products group did not have any significant effect on the volatility of the automobile group, and vice versa. While Shocks transferring between banking groups and petroleum refineries, and between automobile group and banking groups are two-way. Also, the volatility of the banking group affects the volatility of the oil products group and volatility spillovers between petroleum product groups and automobile group is one-way.

Keywords

References

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Journal of Applied Economics Studies in Iran
Volume 8, Issue 29
May 2019
Pages 123-155

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