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Analysis of Factors Influencing Stock Market Volatility Based on GARCH-MIDAS Model

Author

Listed:
  • Dan Ma
  • Tianxing Yang
  • Liping Liu
  • Yi He
  • Wei Wang

Abstract

This paper further extends the existing GARCH-MIDAS model to deal with the effect of microstructure noise in mixed frequency data. This paper has two highlights. First, according to the estimation of the long-term volatility components of the GARCH-MIDAS model, rAVGRV is adopted to substitute for the RV estimator. rAVGRV uses the rich data sources in tick-by-tick data and significantly corrects the impact of the microstructure noise on volatility estimation. Second, besides introducing macroeconomic variables (i.e., macroeconomic consistency index (MCI), deposits in financial institutions (DFI), industrial value-added (IVA), and M2), Chinese Economic Policy Uncertainty (CEPU) index and Infectious Disease Equity Market Volatility Tracker (EMV) are introduced in the long-run volatility component of the GARCH-MIDAS model. As indicated by the results of this paper, the rAVGRV-based GARCH-MIDAS is slightly better than the RV model-based GARCH-MIDAS. In addition to the common macroeconomic variables significantly impacting stock market volatility, CEPU also substantially impacts stock market volatility. Nevertheless, the effect of EMV on the stock market is insignificant.

Suggested Citation

  • Dan Ma & Tianxing Yang & Liping Liu & Yi He & Wei Wang, 2022. "Analysis of Factors Influencing Stock Market Volatility Based on GARCH-MIDAS Model," Complexity, Hindawi, vol. 2022, pages 1-10, January.
    • Handle: RePEc:hin:complx:6176451
    DOI: 10.1155/2022/6176451
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