Houses under construction. © John Hogg/World Bank [[tweetable]]Affordable housing is a major challenge across West Africa, where fewer than 7 percent of households can afford to buy their own home…

Martin Spicer |

Photo: Pierre-Yves Babelon/Shutterstock In an effort to harness the benefits of urbanization and improve the living conditions of the urban poor, Latin American countries have experimented with…

Luis Triveno |