Failure probability is computed by a weighted additive model across four primary factors, then adjusted by payment size and SWIFT gpi status. Factor weights are derived from BIS CPMI G20 cross-border payments monitoring data and SWIFT analytics (2022–2024).
Base probability formula: P(fail) = w₁·OT + w₂·CL + w₃·JR + w₄·PC, where OT = originator tier score, CL = chain length score, JR = jurisdiction risk score, PC = purpose code score. Adjusted multiplicatively for amount band and gpi status.
Output categories: Low (0–8%), Medium (8–20%), High (>20%). These are model estimates, not empirical measurements for a specific corridor.
- BIS CPMI — Cross-border payments monitoring framework (G20 2024)
- SWIFT gpi Analytics Report 2023 — payment failure cause distribution
- World Bank — Remittance Prices Worldwide: payment success rates by corridor type
- FATF — High-risk jurisdictions list, February 2024