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Task Specialization in U.S. Cities from 1880-2000

Listed author(s):
  • Ferdinand Rauch
  • Guy Michaels
  • Stephen J. Redding

We develop a new methodology for quantifying the tasks undertaken within occupations using 3,000 verbs from around 12,000 occupational descriptions in the Dictionary of Occupational Titles (DOTs). Using micro-data from the United States from 1880-2000, we find an increase in the employment share of interactive occupations within sectors over time that is larger in metro areas than non-metro areas. We provide evidence that this increase in the interactiveness of employment is related to the dissemination of improvements in transport and communication technologies. Our findings highlight a change in the nature of agglomeration over time towards an increased emphasis on human interaction.

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File URL: http://www.economics.ox.ac.uk/materials/papers/12552/paper638.pdf
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Paper provided by University of Oxford, Department of Economics in its series Economics Series Working Papers with number 638.

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Date of creation: 11 Jan 2013
Handle: RePEc:oxf:wpaper:638
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  1. Pierre-Philippe Combes & Gilles Duranton & Laurent Gobillon & Diego Puga & Sébastien Roux, 2012. "The productivity advantages of large cities: distingushing agglomeration from firm selection," PSE - Labex "OSE-Ouvrir la Science Economique" hal-00812695, HAL.
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  7. Gray, Rowena, 2013. "Taking technology to task: The skill content of technological change in early twentieth century United States," Explorations in Economic History, Elsevier, vol. 50(3), pages 351-367.
  8. David H. Autor & Frank Levy & Richard J. Murnane, 2003. "The Skill Content of Recent Technological Change: An Empirical Exploration," The Quarterly Journal of Economics, Oxford University Press, vol. 118(4), pages 1279-1333.
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  11. Guy Michaels & Ferdinand Rauch & Stephen Redding, 2008. "Urbanisation and structural transformation," LSE Research Online Documents on Economics 25495, London School of Economics and Political Science, LSE Library.
  12. Ota, Mitsuru & Fujita, Masahisa, 1993. "Communication technologies and spatial organization of multi-unit firms in metropolitan areas," Regional Science and Urban Economics, Elsevier, vol. 23(6), pages 695-729, December.
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  18. Nathaniel Baum-Snow, 2007. "Did Highways Cause Suburbanization?," The Quarterly Journal of Economics, Oxford University Press, vol. 122(2), pages 775-805.
  19. Morris A. Davis & Francois Ortalo-Magne, 2011. "Household Expenditures, Wages, Rents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 14(2), pages 248-261, April.
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  25. Helsley, Robert W. & Strange, William C., 2007. "Agglomeration, opportunism, and the organization of production," Journal of Urban Economics, Elsevier, vol. 62(1), pages 55-75, July.
  26. David H. Autor & Michael J. Handel, 2013. "Putting Tasks to the Test: Human Capital, Job Tasks, and Wages," Journal of Labor Economics, University of Chicago Press, vol. 31(S1), pages 59-96.
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