Estimating the Costs of Electronic Retail Payment Networks: A Cross-Country Meta Analysis Staff discussion paper 2025-17 Cam Donohoe, Youming Liu We explore how many electronic funds transfer (EFT) systems can viably coexist within a jurisdiction at efficient scale by estimating the cost curve of the average EFT. We estimate the marginal cost to be approximately $0.55 per transaction, and the fixed cost to be approximately $83 million per year. Content Type(s): Staff research, Staff discussion papers JEL Code(s): E, E4, E42, E5, E58, H, H5, H54