We examine college students’ interaction within classrooms and estimate peer effects on their academic performance. We exploit a unique seating rule at a university in South Korea, known as the fixed-seat system. We propose a novel identification strategy based on students’ repeated...

In The Changing Body (Cambridge University Press and NBER, 2011), the authors presented a series of estimates showing the number of calories available for human consumption in England and Wales at various points in time between 1700 and 1909/13. The current paper corrects an error in those...

In The Changing Body (Cambridge University Press and NBER, 2011), the authors presented a series of estimates showing the number of calories available for human consumption in England and Wales at various points in time between 1700 and 1909/13. The current paper corrects an error in those...