Task specialization in U.S. Cities from 1880 to 2000

Guy Michaels, Stephen J. Redding, Ferdinand Rauch

Research output: Contribution to journalReview articlepeer-review

23 Scopus citations

Abstract

We develop a new methodology for quantifying the tasks undertaken within occupations using over 3,000 verbs from more than 12,000 occupational descriptions in the Dictionary of Occupational Titles (DOTs). Using micro data from the United States from 1880 to 2000, we find an increase in the employment share of interactive occupations within sectors over time that is larger in metro areas than nonmetro areas. We interpret these findings using a model in which reductions in transport and communication costs induce urban areas to specialize according to their comparative advantage in interactive tasks. We present suggestive evidence relating increases in employment in interactive occupations to improvements in transport and communication technologies. Our findings highlight a change in the nature of agglomeration over time toward an increased emphasis on human interaction.

Original languageEnglish (US)
Pages (from-to)754-798
Number of pages45
JournalJournal of the European Economic Association
Volume17
Issue number3
DOIs
StatePublished - Jun 1 2019

All Science Journal Classification (ASJC) codes

  • General Economics, Econometrics and Finance

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