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This paper takes garlic and ginger as examples and uses the TVP-SV-VAR model to study the time-varying impact effect of economic policy uncertainty on the prices of small agricultural products in China. The research results show that economic policy uncertainty has dynamic time-varying characteristics on the prices of garlic and ginger, showing a medium- and long-term effect. And due to the characteristics of different small agricultural product categories, there are certain differences in the impact. Secondly, due to the different impacts and degrees of uncertainty events, the impact of economic policy uncertainty on the prices of garlic and ginger at different specific time points also varies.

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A Study of the Time-Varying Shock Effects of Economic Policy Uncertainty on the Prices of Small Agricultural Commodities——Garlic and Ginger as an Example

  • 会议论文

  • 发表日期：

    2025年

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  • Jingjing Chen,
  • Guixian Tian

摘要

This paper takes garlic and ginger as examples and uses the TVP-SV-VAR model to study the time-varying impact effect of economic policy uncertainty on the prices of small agricultural products in China. The research results show that economic policy uncertainty has dynamic time-varying characteristics on the prices of garlic and ginger, showing a medium- and long-term effect. And due to the characteristics of different small agricultural product categories, there are certain differences in the impact. Secondly, due to the different impacts and degrees of uncertainty events, the impact of economic policy uncertainty on the prices of garlic and ginger at different specific time points also varies.