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The contribution of Economic Policy Uncertainty to the persistence of shocks to stock market volatility

Author

Listed:
  • Paraskevi Tzika

    (Department of Economics, University of Macedonia)

  • Theologos Pantelidis

    (Department of Economics, University of Macedonia)

Abstract

This paper examines the contribution of Economic Policy Uncertainty (EPU) to the persistence of shocks to stock market volatility. The study applies an innovative approach that compares the half-life of a shock in the context of a bivariate V AR model that includes the volatility of stock returns and EPU, with the half-life of the equivalent univariate ARMA model for the stock return volatility. Based on daily data for the UK and the US, the empirical results corroborate that EPU contributes to the persistence of shocks to stock market volatility for both countries. This contribution is higher for the US, where 14.3% of the persistence of shocks to stock market volatility can be attributed to the EPU index.

Suggested Citation

  • Paraskevi Tzika & Theologos Pantelidis, 2021. "The contribution of Economic Policy Uncertainty to the persistence of shocks to stock market volatility," Discussion Paper Series 2021_11, Department of Economics, University of Macedonia, revised Sep 2021.
    • Handle: RePEc:mcd:mcddps:2021_11
    as

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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Economic Policy Uncertainty; Stock Market Volatility; Persistence; Half-Life;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy

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