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Citation Information

Type Journal Article - The Review of Economics and Statistics
Title Schooling externalities, technology, and productivity: Theory and Evidence from US states
Author(s)
Volume 91
Issue 2
Publication (Day/Month/Year) 2009
Page numbers 420-431
URL https://www.econstor.eu/bitstream/10419/31400/1/571800599.pdf
Abstract
The recent literature on externalities of schooling in the U.S. is rather mixed: positive external effects
of average education are hardly found at all, while often positive externalities from the share of college
graduates are identified. This paper proposes a simple model to explain this fact and tests it using U.S.
states data. The key idea is that advanced technologies, associated with high total factor productivity and
high returns to skills, are complementary to highly educated workers, as opposed to traditional technologies,
complementary to less educated. Our calibrated model predicts that workers with twelve years of schooling
(high school graduates) are indifferent between traditional and advanced technologies, while more educated
workers adopt the advanced technologies and benefit from the larger private and social returns associated
to them. Only shifts in education above high school graduation are therefore associated with positive social
returns stemming from more efficient technologies. The empirical analysis, using compulsory attendance
laws, immigration of highly educated workers and the location of land-grant colleges as instruments confirm
that an increase in the share of college graduates, but not an increase in the share of high school graduates,
had large positive production externalities in U.S. States.

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