International spillover of economic policy uncertainty and its transmission channels: a spatial econometrics method

Wei-Qiang Huang and Xia Li

Applied Economics Letters, 2024, vol. 31, issue 9, 868-873

Abstract: This paper employs a spatial econometrics method to study the international spillovers of economic policy uncertainty (EPU), and contributes to the literature by exploring the transmission channels. We comprehensively consider bilateral trade, financial investment, and information channels (government liability, trade imbalance, fiscal imbalance, business cycle). Based on a large sample of 21 countries from 2001Q1 to 2021Q4, our analysis indicates that the channels proposed are all significantly effective, and bilateral trade contributes the most. We also investigate the dominant channels during five crisis and non-crisis periods: in the global financial crisis, financial investment and government liability similarity are of utmost importance; in European debt crisis, bilateral trade and information channels of government liability and business cycle are the main channels; before these crises, the dominant channel is financial investment, which turned to be bilateral trade in the post-crises period; in COVID-19 pandemic, financial investment is the most important.

Date: 2024
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DOI: 10.1080/13504851.2022.2155605

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