Effects of the US Stock Market Return and Volatility on the VKOSPI

The Korea Composite Stock Price Index (KOSPI) 200 options are one of the most actively traded derivatives in the world. This paper empirically examines the statistical properties of the Korea's representative implied volatility index (VKOSPI) derived from the KOSPI 200 options and the macroecon...

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Veröffentlicht in:Economics. The open-access, open-assessment e-journal open-assessment e-journal, 2015-11, Vol.9 (35), p.1-34A
Hauptverfasser: Han, Heejoon, Kutan, Ali M, Ryu, Doojin
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Sprache:eng
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Zusammenfassung:The Korea Composite Stock Price Index (KOSPI) 200 options are one of the most actively traded derivatives in the world. This paper empirically examines the statistical properties of the Korea's representative implied volatility index (VKOSPI) derived from the KOSPI 200 options and the macroeconomic and financial variables that can predict the implied volatility process of the index, using augmented heterogeneous autoregressive (HAR) models with exogenous covariates. The results suggest that the elaborate HAR framework is proficient at describing the dynamics of the VKOSPI and that some domestic macroeconomic variables explain the VKOSPI. More importantly, the authors find that the stock market return and implied volatility index of the US market play a key role in predicting the level of the VKOSPI and explaining its dynamics, and their explanatory power dominates that of domestic macro-finance variables. Further, while the domestic stock market return does not predict the VKOSPI, the US stock market return does so rather well. [web URL: http://www.economics-ejournal.org/economics/journalarticles/2015-35]
ISSN:1864-6042
1864-6042