“Test and punish”? There’s a debate raging in American schools today: how (and how much) should children be tested? The No Child Left Behind (NCLB) Act created a system where all children in all…

Rafael de Hoyos, Peter Holland |

Street names in Accra, Ghana. Photo credit: Ben Welle/ Flickr CC When I used to work in Rwanda, I lived on a small street in Kigali. Every time I invited friends over, I would tell them to “walk…

Linus Pott |

When I talk to people about impact evaluation results, I often get two reactions: Sure, that intervention delivered great results in a well-managed pilot. But it doesn’t tell us anything about…

David Evans |

“Individuality is the product of both biological inheritance and personal experience, ” said Professor Charles A. Nelson during a recent presentation at the World Bank. Professor Nelson has been…

Magdalena Bendini |

Urban population in Africa will double within the next 25 years and reach 1 billion people by 2040, but concentration of people in cities has not been accompanied by economic density. Typical…

Ede Ijjasz-Vasquez, Somik Lall |

  Over a billion people—about 15% of the world’s population—have disabilities. Almost 80% of them live in the developing world, which is undergoing rapid urbanization. While urbanization brings…

Charlotte McClain-Nhlapo |