"The report examines the impact measurement approaches of 13 GIIN members (including development finance institutions (DFIs), fund managers, banks, and foundations) who invest directly into healthcare delivery companies- detailing the metrics, methodologies, and assumptions that are commonly used by these investors, as well as the challenges and limitations they face.

The report aims to bring greater transparency to the diversity and limitations of current impact measurement approaches, facilitate shared learning, and provide a tangible resource for those who are new to the sector or seeking to improve practice."