Christina Wieser and Miriam Bruhn report on their latest randomized controlled trials (RCT), about the impact of digital financial services. This RCT has, once again, helped them show how digital…

Christina Wieser, Miriam Bruhn |

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 |

It’s financial inclusion week—a series of events exploring "the most pressing actions needed to advance financial inclusion globally"—making this a perfect time to launch the 2017 Global…

Leora Klapper, Saniya Ansar, Jake Hess |

Here is a one-page instruction manual for managing an effective public service.  It is based on a recent World Bank Policy Research Working paper by Imran Rasul, Martin Williams and myself. 

Daniel Rogger |

Labels matter. Girls who are reminded of stereotypes about how girls perform in math do worse on math exams (in some circumstances). Publicly revealing the caste of students in India led to worse…

David Evans |

In June 2015, after two days of heavy rain, flood water washed away Sarah’s small store in Accra, which provided for her family of three (1). The flood that hit the city in June 2015 affected…

Stéphane Hallegatte, Alvina Erman |

This page in: Français Across European countries, women continue to earn less than men. Looking at data for full-time working women across 30 countries, we find that women would have needed an…

Gabriela Inchauste, Ana Maria Munoz-Boudet, Paola Buitrago Hernandez |

How much food is produced on a plot of land? The answer is central to several pressing questions in agricultural and development economics: How efficiently do smallholders use their labor and land…

Talip Kilic, David Lobell |

I Will Always Write Back is the true story of Martin Ganda and Caitlin Alifirenka, who became pen pals -- between Zimbabwe and the USA -- in middle (or lower secondary) school. Over time, they…

David Evans |

One of the most storied topics in agricultural economics, dating back to Chayanov’s work on Russian peasants published nearly a century ago, is the inverse relationship between scale (in terms of…

Talip Kilic, Sydney Gourlay |