Jia, Songbo, Xin Gao, Xiaowen Zhu, Jianxiang Xu, and Yuanyuan Liu. “The Influence of External Economic Policy Fluctuation on Enterprise Productivity: Based on Chinese Listed Enterprises”. Technological and Economic Development of Economy (November 6, 2024): 1-25. Accessed March 9, 2025. https://jbem.vilniustech.lt/index.php/TEDE/article/view/22410.