Dumeh, R., & Agyepong, L. (2026). Payment Interoperability and Cross-Border SME Trade in Africa: The Roles of Transaction Efficiency, Regulatory Fragmentation and Transaction Costs: Deconstructing Cross-Border Payment Frictions, PAPSS Dynamics, and Institutional Governance under the AfCFTA. Pan-African Journal of Research and Innovation in Business, Finance and Management, 1(1-2), 67-77. https://doi.org/10.69010/pajri-bfm.46