As the world’s largest bilateral donor responsible for managing around $20 billion in annual funding, the US Agency for International Development (USAID) has a particular responsibility to take an evidence-informed approach to its work. It also has a congressional mandate to do so.

The same ideals that guided America’s earliest women of courage now lead our country into the world to combat the dehumanization of women in every form. We will not accept that women and girls are sold into modern-day slavery. We will not accept that women and girls are denied an education. We will...

MCC’s model has received much recognition. However, since the agency controls just a small portion of the US foreign assistance budget, it alone has not fulfilled — and cannot be expected to fulfill — the founding vision of transforming US foreign assistance policy. Partly in respo...