Evidence Action works on programs for which there is a solid evidence base of positive impact, often in the form of randomized control trials. We develop the business models to scale these evidence-based programs so they benefits millions of the most poor and marginalized people. Evidence Action doesn’t work exclusively on a particular sector, like water or microfinance, or has a commitment to a particular kind of service delivery model. We are guided by evidence of impact first. So, what do we consider when assessing interventions to explore or support?