From 2000 to 2011, the number of mobile phone subscriptions in developing countries increased from 250 million to 4.5 billion.* My work explores the opportunities created by these new networks.

American Economic Association Papers and Proceedings
Working Papers
with Darrell Grissen
Submitted. Media coverage: NPR Morning Edition, The World Bank (syndicated to World Economic Forum), New Scientist, Radio New Zealand
Original proposal: Big Data for Development (posted 2010)
with B. Douglas Bernheim, Jeffrey Naecker, and Antonio Rangel

The Joint Network Structure of Spillovers and Policy: Evidence from a Mobile Phone Handout in Rwanda
In Progress
Competition in Network Industries: Evidence from Mobile Telecommunications in Rwanda
Making Decisions with Manipulated Data
with Joshua Blumenstock
White Papers