(C)  Diego Arias / World Bank Helena Costa, a smallholder from Sao Tome & Principe, has been investing in her family’s small agribusiness for a decade, wanting it to be more productive, more…

Diego Arias, Aira Htenas |

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 |