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 |

[[tweetable]]How fast is your city growing? The answer may depend on where you live.[[/tweetable]] There are the booming megacities such as Tokyo, Mumbai, and Nairobi. Then there are cities that…

Ede Ijjasz-Vasquez, Paula Restrepo Cadavid |

Robert Allen’s recent AER paper on “Absolute Poverty: When Necessity Displaces Desire” is a fascinating read, on many levels. The paper uses linear programming (LP) to compute (four variants of)…

Francisco Ferreira |

Photo: © Simone D. McCourtie / World Bank Heavy smog compelled New Delhi to declare a pollution emergency last week. As air pollution soared to hazardous levels and residents donned masks, India’s…

Olusoji O. Adeyi, Julia Bucknall |

Also available in: Français | العربية Photo: Artit Wongpradu / Shutterstock.com Islamic finance has been growing rapidly across the globe. According to a recent report by the Islamic Financial…

Clive Harris, Ashraf Bouajina |

Today, Turkey hosts more refugees than any other single country—almost 3.3 million. The vast majority are fleeing the civil war in Syria, and almost half are under the age of 18. A devastating…

Johannes Zutt, Elif Ayhan, Joel Reyes |

Photo: Dane Macri/The Advocacy Project via Flickr CC. The relationship between poverty and disability goes both ways: [[tweetable]]disability increases the risk of poverty[[/tweetable]], and[[…

Charlotte McClain-Nhlapo |

There is strength in numbers, the old idiom goes. Indeed, history shows that collaboration fosters ideas and results. Next week, the Global Platform for Sustainable Cities, or GPSC, will convene…

Xueman Wang, Dini Djalal |

With India’s rapidly growing dairy industry, large-scale milk fortification of Vitamins A and D is a robust vehicle for increasing micronutrients intake across the population. Credit: India’s…

Edward W. Bresnyan |