"This report assesses the progress made over the past four years in building the global impact investing industry. It is divided into three parts: first, context, which introduces the structure of and key actors in the impact investing fi eld; next, an examination of the recent achievements and challenges in building the impact investing marketplace; and fi nally, presentation of a set of recommendations for accelerating the rate of growth of the field."

"The guide provides investors with a basic overview of social metrics for impact investing, an outline of the issues and challenges of social impact measurement, a summary of existing social impact measurement tools and a description of how they are being used, and a set of diagnostic tools to help investors think through key questions and issues related to measurement."