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Realized Volatility and Jumps in the Athens Stock Exchange

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  • Dimitrios Vortelinos
  • Dimitrios Thomakos

Abstract

We test for and model volatility jumps for three major indices of the Athens Stock Exchange (ASE). Using intraday data we first construct several, state-of-the-art realized volatility estimators. We use these estimators to construct the jump components of volatility and perform various tests on their properties. Then we use the class of Heterogeneous Autoregressive (HAR) models for assessing the relevant effects of jumps on volatility. Our results expand and complement the previous literature on the ASE market and, in particular, this is the first time, to the best of our knowledge, that volatility jumps are examined and modeled for the Greek market, using a variety of realized volatility estimators.

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File URL: http://econ.uop.gr/~econ/RePEc/pdf/real_vol_jumps_HAR_ASE.pdf
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Bibliographic Info

Paper provided by University of Peloponnese, Department of Economics in its series Working Papers with number 00044.

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Length: 28 pages
Date of creation: 2009
Date of revision:
Handle: RePEc:uop:wpaper:00044

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Keywords: Athens Stock Exchange ; Bipower variation; Heterogeneous autoregressive models; Realized volatility; Volatility jumps.;

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