Over the last twenty years, impact evaluations have dramatically expanded the body of evidence about which types of development programs work, when, and why, but their application has been heavily…

Ariel BenYishay |

Reform leaders who are persuaded by the need to invest in human capital face the challenge of getting thousands of state personnel, who staff myriad government agencies, to deliver. The…

Stuti Khemani |

African widows often face considerable disadvantage relative to married women in their first union. How much so depends on the society they live in, with pronounced hardship in some contexts, yet…

Dominique van de Walle |

It’s not so long since the days when speaking of ‘universal health coverage’ used to provoke shockwaves. Happily, the principle that “… everyone having access to the health care they need without…

Ugo Gentilini |

In the first part of this blog, I went down memory lane and told you about my teenage years and how my parents had managed to make sure I abstained from tobacco by offering to pay for a high…

Damien de Walque |

When I was a teenager in Belgium, my parents wanted to make sure that I wouldn’t become a smoker. At the age of 15, I had tried a few cigarettes with friends and they were worried I would pick up…

Damien de Walque |

Machine learning methods are increasingly applied in the development policy arena. Among many recent policy applications, machine learning has been used to predict poverty, soil properties, and…

Daniel Mahler, Paolo Brunori, Paul Hufe |

“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 |

Equality of opportunity is a popular policy objective around the world. It is deeply embodied in the American Dream and has resonated with politicians ranging from Margaret Thatcher to Nelson…

Daniel Mahler |

“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 |