Kavitha, S. et al. 2026. Transformer-Based Forecasting of Digital Transaction Volatility under Monetary Policy Shocks: Shock-Conditioned Attention Models with Regime- and Horizon-Wise Evidence. Fintech Innovation Journal. 2, 3 (Sep. 2026), 223–238. DOI:https://doi.org/10.63913/ftij.v2i3.37.