About Me

I am an economist in the Research Department at the Federal Reserve Bank of Philadelphia. My fields of interest include labor economics, international trade, and urban economics. Among other things, my current research projects examine evidence on why cities exist and evidence on the life cycle of ideas.

Curriculum Vitae

(pdf, February 4, 2009) 

Working Papers 

"Innovation, Cities, and New Work" (pdf, October 2007, Federal Reserve Bank of Philadelphia Working Paper 07-25). Also: A list of all 30,900 occupation titles in the 2000 Census occupation classification system (version 2, Oct 2007), with variables indicating whether they are new under a baseline definition of new work (new_lin) or new under a Census rules definition of new work (new_cen). Both algorithms are described in the paper, and I can provide this data in Stata format upon request; an older list of new occupation titles used in the paper (deprecated, version 1, Nov 2006); a color map of new work employment share (.png) across metropolitan areas in 2000.

"Thick-Market Effects and Churning in the Labor Market: Evidence from U.S. Cities" (with Hoyt Bleakley) (pdf, October 2007, Federal Reserve Bank of Philadelphia 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. Also: a color map of property value growth (.gif) in northwest Chicago between 1985 and 1991.