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Identifying age, cohort and period effects in scientific research productivity : discussion and illustration using simulated and actual data on French physicists

Author: Bronwyn H Hall; Jacques Mairesse; Laure Turner; National Bureau of Economic Research.
Publisher: Cambridge, Mass. : National Bureau of Economic Research, 2005.
Series: Working paper series (National Bureau of Economic Research), no. 11739.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Database:WorldCat
Summary:
"The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of productivity where these effects are assumed to enter in an additive manner, we present the conditions necessary to identify  Read more...
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Details

Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Bronwyn H Hall; Jacques Mairesse; Laure Turner; National Bureau of Economic Research.
OCLC Number: 62238783
Notes: November 2005.
Title from first page of PDF document.
Description: 1 online resource (31 p.) : ill. (some col.)
Series Title: Working paper series (National Bureau of Economic Research), no. 11739.
Responsibility: Bronwyn H. Hall, Jacques Mairesse, Laure Turner.

Abstract:

"The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of productivity where these effects are assumed to enter in an additive manner, we present the conditions necessary to identify and test for the presence of the three effects. In particular we show that failure to specify precisely the conditions under which such a model is identified can lead to misleading conclusions about the productivity-age relationship. We illustrate our methods using data on the publications 1986-1997 by 465 French condensed matter physicists who were born between 1936 and 1960"--National Bureau of Economic Research web site.

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