11 Principles for Designing Financial Services for the Poor:
- Design for social obligation
- Design for social rank
- Flexibility with sanctions
- Structured illiquidity
- Change the iconography, design with local values
- Design for convertibility
- Help calculate convertibility
- Design for relative volume, not increment
- Lucky Numbers
- Tranches and Tiers
- Design for Cyclical Events
http://www.imtfi.uci.edu/imtfi_firstannualreport_design%20principles (via)