Trade Policy Uncertainty
梳理了贸易政策不确定性的来源与度量方法，提出建模框架和量化效应的方法，并分析其在贸易协定中的作用，为后续研究指明方向。
Trade policy uncertainty (TPU) has become an important source of economic uncertainty and research. We review the main sources and measures of TPU. We then provide a conceptual framework for modeling TPU and methods for estimating and quantifying its effects. We analyze its role in trade agreements and discuss open questions for future research.