This powerpoint was presented by WSP Consultant, Sophie Hickling,during AfricaSan 3 (Kigali, Rwanda - 2011) under the "Economics of Sanitation for Advocacy and Decision Making" session. This session introduced the Economics of Sanitation Initiative (ESI) aims, rationale, and methods. A panel of experts from government, donors and other sector specialists in Africa commented on the use of ESI results for sanitation financing; the use of media to influence stakeholders; the mechanisms for adopting ESI results into government decision making; and critical assessment and proposed improvement to ESI methods.