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Have Dynamic Spillovers and the Connectedness of Trade Policy Uncertainty Changed During the COVID-19 Pandemic and Sino-US Trade Frictions?

Author

Listed:
  • Chien-Chiang Lee

    (School of Economics and Management, Nanchang University, Nanchang, China Research Center of Central China for Economic and Social Development, Nanchang University, Nanchang, China)

  • Farzan Yahya

    (College of Finance and Economics, Nanchang Institute of Technology, Nanchang, China)

Abstract

In this paper, we examine the spillover and connectedness between the trade policy uncertainty (TPU) of the United States (US), China, Japan, and the Republic of Korea (henceforth, Korea) under global geopolitical risk (GPR), infectious disease equity market volatility (EMVID), and GPR from North Korea (GPRNK) using a relatively novel time-varying parameter vector autoregression (TVP-VAR) approach. Additionally, method of moments quantile regression is utilised to estimate the asymmetric effect of GPR, GPRNK, and EMVID on TPU. Our findings suggest that there is a high total and directional spillover amongst underlying variables during Sino–US trade friction that further elevated during the coronavirus disease (COVID-19) pandemic period. The US is a net receiver of spillover from the TPU of all economies, while the Chinese TPU receives spillover from EMVID. The results further confirm that both the TPU of China (TPUCN) and the TPU of the US (TPUUS) are vulnerable to EMVID, but the effect is stronger for Chinese TPU in the higher quantiles. Although Japanese TPU is less vulnerable to GPR and EMVID, it is significantly exposed to GPRNK. Korean trade shows resiliency and immunity to pandemic-induced volatility and GPRNK.

Suggested Citation

  • Chien-Chiang Lee & Farzan Yahya, 2024. "Have Dynamic Spillovers and the Connectedness of Trade Policy Uncertainty Changed During the COVID-19 Pandemic and Sino-US Trade Frictions?," Working Papers DP-2023-35, Economic Research Institute for ASEAN and East Asia (ERIA).
    • Handle: RePEc:era:wpaper:dp-2023-35
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    References listed on IDEAS

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    1. Lee, Chien-Chiang & Yahya, Farzan, 2025. "Understanding the asymmetric impact of non-fundamental behavioral shocks on trade efficiency: Evidence from China's trade partners," Economic Analysis and Policy, Elsevier, vol. 88(C), pages 237-263.
    2. Alishba Hania & Chien-Chiang Lee & Farzan Yahya, 2025. "Climate anxiety, economic policy uncertainty, and green growth," Economic Change and Restructuring, Springer, vol. 58(1), pages 1-34, February.
    3. Chien-Chiang Lee & Farzan Yahya & Md Reza Sultanuzzaman, 2024. "Monetary Policy Uncertainty and Agricultural Climate Risk: Does the Agricultural Kuznets Curve Exist?," Bulletin of Monetary Economics and Banking, Bank Indonesia, vol. 27(4), pages 631-654, December.

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