Supplementary data for: The invisible billions — Why informal capital resists multilateral and government mobilisation frameworks. A PRISMA 2020 systematic review

Supplementary materials for a PRISMA 2020 systematic review of informal-sector capital mobilisation in West Africa (manuscript under double-anonymous review at World Development). The deposit contains: the review protocol and amendments (01); the full search strategy with per-source RIS exports across 14 databases (02); screening documentation, including exclusions by reason, decision records for the 91 included studies, and an intra-rater reliability note (03); the quality-assessment instrument and scale audit (04); the coding codebook, synthesis protocol, and coding audit trails (05); the completed PRISMA 2020 checklist and flow diagram (06); and the reference list of the 91 included studies in RIS format (07). The review covers 2010–2025 and includes 24 per cent French-language sources. Author identity is withheld during peer review and will be restored upon publication. See README.txt for full details.