README for crosswalk file cw_sea1950_czone.dta
David Dorn

Notes:
Use the Stata command "joinby" to combine the Census microdata with the crosswalk file using the state economic area variable (renamed to "sea1950" in the crosswalk file). The variable "afactor" in the crosswalk indicates which fraction of a SEA's population maps to a given CZ. To analyze weighted Census data, the person weight from the Census needs to be multiplied with "afactor".

Please cite as source for this file:
David Autor and David Dorn. "The Growth of Low Skill Service Jobs and the Polarization of the U.S. Labor Market." American Economic Review, 103(5), 1553-1597, 2013.