About

I am an economist in the Regional and Microeconomics Section of the Research Department at the Federal Reserve Bank of Philadelphia. This site contains information and papers related to my research work. My main interests are in economic geography, labor economics, and technological change. 

Curriculum Vitae (pdf, May 4, 2010)

Working papers and research in progress

"Portage: Increasing Returns and Path Dependence in U.S. History" (with Hoyt Bleakley).

"Technological Adaptation, Cities, and New Work" (pdf, July 2009, FRBP working paper 09-17, accepted at The Review of Economics and Statistics). Data and code used for this paper can be found here. An earlier version of this paper was called "Innovation, Cities, and New Work" (pdf, October 2007, FRBP working paper 07-25).

"Thick-Market Effects and Churning in the Labor Market: Evidence from U.S. Cities" (with Hoyt Bleakley) (pdf, October 2007, FRBP working paper 07-23).

Publications

"Precision, Bias, and Uncertainty for State Population Forecasts: An Exploratory Analysis of Time Series Models” (2007) (with Jeff Tayman and Stanley K. Smith). Population Research and Policy Review (26) 3: 347-369. 

"Gentrification and Transit in Northwest Chicago" Journal of the Transportation Research Forum, in Transportation Quarterly, 56 (4), (2002): 175-191. 

Property value growth in northwest Chicago, 1985–1991