“…The economic uncertainty brought about by the volatility of (i.e., uncertainty related to) trade costs (both tariffs and nontariffs) would make the regulatory environment unpredictable, and in turn, render firms reluctant in taking essential or costly decisions (e.g., Bloom, 2014). The unpredictable regulatory environment raises the risk premiums in various financial markets, and generates higher borrowing costs (e.g., Liu and Wang, 2022;Shabir et al, 2022), which increase firms' financial constraint and operational risk, and negatively affect their risk-taking (e.g., Wang et al, 2021). As periods of higher uncertainty reduce personal income and corporate profitability, investment becomes less attractive to the average household (e.g., Al-Thaqeb and Algharabali, 2019;Bloom, 2009;Pástor and Veronesi, 2012), and makes households less attractive to new market opportunities, price signals, or other incentives (Foote et al, 2000).…”