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 |

Translations available in Chinese and Spanish. Many of you are already familiar with the PPP (Public-Private Partnerships) Group’s Private Participation in Infrastructure (PPI) Database. As a…

Clive Harris, Jenny Chao |

For fun, suppose you were a software developer, and you came up with a terrific idea to communicate public transit information. For example, imagine your city experiences frequent floods, and you…

Holly Krambeck |