We estimate the effects of one of the largest anti-vote-buying campaigns ever studied — with half a million voters exposed across 1427 villages — in Uganda’s 2016 elections. Working with civil society organizations, we designed the study to estimate how voters and candidates responded to...

We estimate effects of the largest U.S. federal grant for college students using administrative data from Texas four-year public colleges and a discontinuity in grant generosity. Eligibility for additional grant aid significantly increases degree receipt and earnings beginning four years after...

How do radical reforms of the state shape economic development over time? In 1790, France’s first Constituent Assembly overhauled the kingdom’s organization to set up new administrative entities and local capitals. In a subset of departments, new capitals were chosen quasi-randomly as the...

We estimate effects of the Pell Grant - the largest U.S. federal grant for college students - using administrative data from Texas public colleges and a discontinuity in grant generosity for low-income students. Within four-year institutions, eligibility for additional grant aid significantly...

This paper explores the foundations of religious influence in politics and society. We show that an important Islamic institution fostered the entrenchment of Islamism at a critical juncture in Indonesia, the world's largest Muslim country. In the early 1960s, rural elites transferred large...

Charitable donations provide positive externalities and can potentially be increased with an understanding of donor preferences. We obtain a uniquely comprehensive characterization of donation motives using an experiment that varies treatments between and within subject. Donations are increasing...

Group compensation and public announcement of performance are two common aspects of working with other people. We randomly assign these aspects to real-effort tasks. Following task completion and payment, subjects are given an unexpected opportunity to donate to a local charity. Group...