Jeremiah Dittmar has been an Assistant Professor of Economics at American University since 2009. In 2011-2012, Jeremiah Dittmar will be a member of the Institute for Advanced Study (Princeton, NJ). He received his PhD from UC Berkeley in 2009. Professor Dittmar’s research exploits historical data to document the institutional and technological roots of economic growth. His research is broadly concerned with exploiting micro-level and geographic data to document the processes underlying macroeconomic growth. One strand of his research has used city level data to document the impact of the great revolution in Renaissance information technology – Gutenberg’s moveable type printing press. Another line of research has examined the effects coercive restrictions on the mobility of rural labor had on long run economic development across regions in Europe.