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Chinese Journal of Management Science ›› 2022, Vol. 30 ›› Issue (1): 77-87.doi: 10.16381/j.cnki.issn1003-207x.2019.1105

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GAS-SKST-F Model and Its Application in High Frequency Multivariate Volatility Forecast

LU Wan-bo, KANG Jing-hao   

  1. School of Statistics, Southwestern University of Finance and Economics, Chengdu 611130, China
  • Received:2019-07-28 Revised:2020-03-04 Online:2022-01-20 Published:2022-01-29
  • Contact: 鲁万波 E-mail:luwb@swufe.edu.cn

Abstract: Modeling conditional dependency structure of financial assets through time-varying covariance is of great significance to capital risk management, option pricing and optimal portfolio. With the advent of high-frequency data, realized multivariate volatility model is widely applied in the financial field in recent years. Among the observation-driven models for time-varying parameters, the clear advantage of the generalized autoregressive score (GAS) model is that it exploits the complete density structure and likelihood information rather than theconditional moments information.

Key words: GAS-SKST-F model, multivariate skewed student t density, multivariate volatility

CLC Number: