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Beeps

By Jeffrey C. Ely

American Economic Review, January 2017

I introduce and study dynamic persuasion mechanisms. A principal privately observes the evolution of a stochastic process and sends messages over time to an agent. The agent takes actions in each period based on her beliefs about the state of the process ...

History and the Sizes of Cities

By Hoyt Bleakley and Jeffrey Lin

American Economic Review, May 2015

We contrast evidence of urban path dependence with efforts to analyze calibrated models of city sizes. Recent evidence of persistent city sizes following the obsolescence of historical advantages suggests that path dependence cannot be understood as the m...

Detecting Learning by Exporting

By Jan De Loecker

American Economic Journal: Microeconomics, August 2013

Learning by exporting refers to the mechanism whereby a firm's performance improves after entering export markets. This mechanism is often mentioned in policy documents, but many econometric studies have not found corroborating evidence. I show that th...