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Stock returns and implied volatility: A new VAR approach

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  • Lee, Bong Soo
  • Ryu, Doojin

Abstract

This study re-examines the return-volatility relationship and dynamics under a new VAR framework. By analyzing two model-free implied volatility indices - VIX (the U.S.) and VKOSPI (Korea) - and their corresponding stock market indices, we found an asymmetric volatility phenomenon in both developed and emerging markets. However, the VKOSPI, a recently published implied volatility index, shows impulse response dynamics that are clearly distinct from those for the VIX, an implied volatility index for the developed market.

Suggested Citation

  • Lee, Bong Soo & Ryu, Doojin, 2012. "Stock returns and implied volatility: A new VAR approach," Economics Discussion Papers 2012-51, Kiel Institute for the World Economy (IfW Kiel).
    • Handle: RePEc:zbw:ifwedp:201251
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    References listed on IDEAS

    as
    1. Campbell, John Y. & Hentschel, Ludger, 1992. "No news is good news *1: An asymmetric model of changing volatility in stock returns," Journal of Financial Economics, Elsevier, vol. 31(3), pages 281-318, June.
    2. Rapach, David E., 2001. "Macro shocks and real stock prices," Journal of Economics and Business, Elsevier, vol. 53(1), pages 5-26.
    3. Lee, Bong Soo, 2010. "Stock returns and inflation revisited: An evaluation of the inflation illusion hypothesis," Journal of Banking & Finance, Elsevier, vol. 34(6), pages 1257-1273, June.
    4. Bekaert, Geert & Wu, Guojun, 2000. "Asymmetric Volatility and Risk in Equity Markets," Review of Financial Studies, Society for Financial Studies, vol. 13(1), pages 1-42.
    5. Christie, Andrew A., 1982. "The stochastic behavior of common stock variances : Value, leverage and interest rate effects," Journal of Financial Economics, Elsevier, vol. 10(4), pages 407-432, December.
    Full references (including those not matched with items on IDEAS)

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    More about this item

    Keywords

    asymmetric volatility; vector autoregression; VIX; VKOSPI;
    All these keywords.

    JEL classification:

    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets

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