Islam, Md. Shahidul, Md Ashikquer Rahman, and Akbar Ali Hossain. “Causal Inference in Econometrics Using Machine Learning: Estimating the Effect of AI and Automation Adoption on Firm Productivity in Europe”. Statistics, Optimization & Information Computing (March 4, 2026). Accessed March 11, 2026. http://www.iapress.org/index.php/soic/article/view/3212.