About

I am a senior 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, October 4, 2011)

Working papers and research in progress

"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

"Portage and Path Dependence" (with Hoyt Bleakley ). Quarterly Journal of Economics, forthcoming. Previous versions: FRBP working paper 11-38 (July 2011),  FRBP working paper 10-27 (August 2010).

"Technological Adaptation, Cities, and New Work" (May 2011).  The Review of Economics and Statistics 93 (2); 554-574. Previous versions: FRBP working paper 09-17 (July 2009), FRBP working paper 07-25 (October 2007). Data and code used for this paper can be found here.

"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