What does it take to measure and fund positive social change? What Matters: Investing in Results to Build Strong, Vibrant Communities, published in partnership with the Nonprofit Finance Fund (NFF), is the fourth release in our What series and sets a vision for revolutionizing the way America achieves social progress: By paying for results. The book features a collection of essays by 80 authors with wide expertise on the social, cultural, and financial implications of orienting programs and funding around outcomes. Together, the authors imagine the creation of a trillion-dollar marketplace for results, where governments, social service providers, and partners better understand the full, true costs of achieving social change and where compensation is based on measurable results. Learn more and get your copy of the book at investinresults.org.