Sustainable policy uncertainty: How trade wars, partisan politics, and policy volatility shape the U.S. green transition
This study examines the dynamic drivers of sustainable policy uncertainty in the United States from 2002 to 2025 using a time‐varying parameter vector autoregression (TVP‐VAR) framework. Sustainable Uncertainty is operationally defined as the ESG‐Based Sustainability Uncertainty Index, which captures news‐based uncer...