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Academic Journal of Business & Management, 2024, 6(5); doi: 10.25236/AJBM.2024.060503.

Time-varying effects of economic policy uncertainty on the volatility of China's stock market: Based on TVP-VAR Model

Author(s)

Huiqi Wu

Corresponding Author:
Huiqi Wu
Affiliation(s)

School of Economics and Management, Guangxi Normal University, Guilin, China

Abstract

The stock market is a fundamental component of China's modern financial system, and fluctuations in the stock market can significantly reflect China's economic performance. As China's economy undergoes transformation and upgrading, economic policy is being continuously adjusted and improved. This paper employs China's economic policy uncertainty index and stock market volatility data to examine the time-varying effect of China's economic policy uncertainty on stock market volatility using the TVP-VAR model. The research findings indicate that as the lag period increases, the impact of economic policy uncertainty on stock market volatility also increases. This impact is not constant but varies over time, and it is evident that the impact of economic policy uncertainty on stock market volatility is not limited to a specific period or event. Rather, it is a long-term phenomenon that has a significant and far-reaching impact. Based on these findings, this paper presents policy recommendations that are relevant to the observed trends.

Keywords

Economic policy uncertainty; Stock market volatility; TVP-VAR model

Cite This Paper

Huiqi Wu. Time-varying effects of economic policy uncertainty on the volatility of China's stock market: Based on TVP-VAR Model. Academic Journal of Business & Management (2024) Vol. 6, Issue 5: 15-22. https://doi.org/10.25236/AJBM.2024.060503.

References

[1] Brogaard, J., Detzel, A. (2015). The Asset-Pricing Implications of Government Economic P-olicy Uncertainty. Management Science, (1), 61.

[2] Baker, S.R., Bloom, N., Davis, S.J. (2015). Measuring Economic Policy Uncertainty. Worki-ng Paper, 13-02.

[3] Yu, H., Fang, L., Sun, W. (2018). Forecasting Performance of Global Economic Policy Un-certainty for Volatility of Chinese Stock Market. Physica A: Statistical Mechanics and its Applications, (505), 931-940.

[4] Bu Lin, Sun Liling, Li Zheng. (2020). Geopolitical Risk, Economic Policy Uncertainty and Stock Market Volatility. Nankai Economic Studies, (05), 185-205.

[5] Pan Changchun, Wang Weigiang. (2022). Cross-category and Cross-border Connectedness between Economic Policy Uncertainty and Stock Market Volatility: Evidence from China and the U.S. World Economy Studies, (11), 89-105+136-137.

[6] Primiceri, G.E. (2005). Time varying structural vector autoregressions and monetary policy. Review of Economic Studies, (3), 821-852.

[7] Nakajima, J. (2011) Time-varying parameter VAR model with stochastic volatility: An overv-iew of methodology and empirical applications. IMES Discussion Paper Series, (9), 1-40.