The paper examines individuals’ abilities to identify the highly central people in their social networks, where centrality is defined by diffusion centrality (Banerjee, Chandrasekhar, Duflo, and Jackson, 2013), which characterizes a node’s influence in spreading information. It...

The record of aid to fragile and poorly-performing states is the real test of aid effectiveness. Rich countries can justify aid to fragile states both through altruism and self-interest. But, with some exceptions, donors have appeared at the wrong times and with the wrong attitudes, even...