Assessing the Impact of External Shocks on Prices in the Live Pig Industry Chain: Evidence from China
文献类型： 外文期刊
第一作者： Zhou, Dapeng
作者： Zhou, Dapeng;Huan, Honghua;Li, Yinqiu;Cheng, Jinhua;Zhou, Dapeng;Huan, Honghua;Zhang, Jing;Hu, Nanyan
作者机构：
关键词： external shock; economic policy uncertainty; industrial news uncertainty; pig industry chain
期刊名称：SUSTAINABILITY （ 影响因子：3.3； 五年影响因子：3.6 ）
ISSN：
年卷期： 2025 年 17 卷 5 期
页码：
收录情况： SCI
摘要： Analyzing the influence of external shocks on the pricing dynamics of the live pig industry chain is essential for effective macroeconomic control. Utilizing monthly data spanning from January 2010 to August 2023, this study employs the TVP-SV-VAR (Time-Varying Parameter-Stochastic Volatility-Vector Autoregression) model to analyze the effects of EPU (Economic Policy Uncertainty) and INU (Live Pig Industry News Uncertainty) on industry pricing. The findings are as follows: Firstly, the impacts of EPU and INU on industry prices exhibit time variability and distinct characteristics. Specifically, the impact magnitude of EPU ranges between [-0.025, 0.025], and that of INU between [-0.01, 0.01]. These differences in impact magnitude elicit varied responses from manufacturers and consumers to the indices. Secondly, uncertainty shocks at particular time points show high consistency, suggesting a patterned influence of external shocks on industry pricing that aligns with historical trends. Thirdly, robustness tests with alternative explanatory variables confirm the reliability of the findings. An uncertainty index, crafted from more comprehensive information sources, more accurately captures the effects of external shocks on industry pricing. Additionally, the volume of live pig slaughters illustrates the potential interaction between external shocks and pricing dynamics. In an era marked by increasingly frequent external shocks, this research offers valuable insights for policymakers to implement macro-control and foster high-quality industrial development.
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