Kazakhstan. Photo: Kubat Sydykov / World Bank How large is the share of public procurement to GDP in middle-income and low-income countries and how it is evolving? If sizable, can public…

Simeon Djankov, Federica Saliola, Asif Islam |

 Photo: Curt Carnemark / World Bank Crises in access to water are making headlines around the world. Among difficult policy pathways to respond, convincing people to change their behavior and…

Laura De Castro Zoratto, Courtney Price Ivins |