Sun, L. and Yang, Q. 2025. Strategic Synergy between Financial Leverage and Technological Innovation: Analysing BYD’s Competitive Edge in the Global EV Market: A Mixed-Methods Study Integrating Porter’s Five Forces Analysis with a Financial Strategy Matrix (2018--2024). Financial Economics Research. 2, 1 (Apr. 2025), 57–66. DOI:https://doi.org/10.70267/fer.250201.5767.