Does the US IT stock market dominate other IT stock markets: Evidence from multivariate GARCH model

Zhuo Qiao, Venus Khim-Sen Liew, Wing Keung Wong

Research output: Contribution to journalArticlepeer-review

Abstract

Utilizing multivariate GARCH framework, this study finds that generally the US Information Technology (IT) market contributes a strong volatility rather than mean spillover effect to non-US IT markets, implying that the US IT market plays a dominant role in affecting the volatility of world IT markets. However, our further analysis of the dynamic path of correlation coefficients reveals that the strong relationship between US and non-US IT markets had weakened after the burst of the IT bubble.
Original languageEnglish
Pages (from-to)1-7
JournalEconomics Bulletin
Volume6
Issue number27
Publication statusPublished - 2007

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