As the world becomes increasingly urbanized, the number of megacities is growing rapidly. Today there are 37 cities worldwide with populations of greater than 10 million, and 84 with populations…

Philip E. Karp, Peter Ellis, Barjor Mehta |

When Prime Minister Narendra Modi launched the Swachh Bharat Mission in 2014, it marked the beginning of the world’s largest ever sanitation drive. Now, a 2017 survey by the Quality Council of…

Guangzhe CHEN, Vinita Ranade |

Children in Koutoukalé, Niger Have you ever wondered how your life chances are affected by where you were born? Odds of being born at all are already miraculously small, but only one in ten of us…

Maximilian Leo Hirn, Aude-Sophie Rodella |

Many people were bitterly disappointed when four cases of wild polio were discovered in August 2016 in insecure areas of Borno State in the northeast of Nigeria. Nigeria had gone for almost two…

Mayowa Oluwatosin Alade, Benjamin Loevinsohn, Ayodeji Oluwole Odutolu |

A new study finds that child marriage could cost developing countries trillions of dollars by 2030, with the largest economic cost coming from its impact on fertility and population growth.…

Quentin Wodon, Suzanne Petroni |

Entering data. Photo: World Bank In the fiscal transparency arena, people often hear two conflicting claims. First, governments complain that few people take advantage of fiscal information that…

Paolo de Renzio, Massimo Mastruzzi |

May 17 is the International Day Against Homophobia, Transphobia and Biphobia, or IDAHOT.   Why should we care about IDAHOT? Because sexual orientation and gender identity, or SOGI, matters.   [[…

Ede Ijjasz-Vasquez, Clifton Cortez |

A recent paper in Lancet Global Health found that generous conditional cash transfers to female secondary school students had no effect on their school attendance, dropout rates, HIV incidence, or…

Berk Özler |

Video still of a mine in southern Africa by Clifford Derrick

Ronald Upenyu Mutasa |

 Photo © Dominic Chavez/World Bank Performance budgeting (PB) has a deep and enduring appeal. What government would not want to allocate resources in a way that fosters efficiency, effectiveness,…

Donald Moynihan, Ivor Beazley |