a column by Theresa Kuchler and Johannes Stroebel for VOX: CEPR’s Policy Portal
The mixing of people and ideas in cities is at the heart of the ‘agglomeration externalities’ that drive the high productivity of cities. While public transit infrastructure is thought to help different people living in different parts of the same city to interact with one another, the lack of large-scale data has made it difficult to study.
This column explores the link between public transit and social connectedness in New York City. It finds the first suggestive evidence that New York City’s public transit system plays an important role in enabling social ties to be formed and maintained across geographic distances.
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