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Julian R. Betts
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Journal Articles
Publisher: Journals Gateway
The Review of Economics and Statistics (2004) 86 (2): 497–513.
Published: 01 May 2004
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We estimate the effect that six types of high school math courses have on students' earnings nearly a decade after graduation. We use High School and Beyond transcript data to differentiate courses at a more detailed level than in previous research. This enables us to show that more-advanced courses have larger effects than less-advanced ones. We also provide evidence that math courses can help close the earnings gap between students from low-income and middle-income families. Finally, by incorporating other academic subjects, we demonstrate how specific course combinations can explain the earnings premium related to an additional year of school.
Journal Articles
Publisher: Journals Gateway
The Review of Economics and Statistics (1997) 79 (1): 146–150.
Published: 01 February 1997
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The paper tests whether technological change has been neutral in Canadian manufacturing industries, using a system of translog cost share equations for 1962 through 1986. The model features two classes of labor treated as distinct inputs. Tests rejected homotheticity in all industries. Hicks neutrality was also rejected in 16 of 18 industries. The most common pattern of nonneutral technical change was a bias away from blue-collar workers. Formal tests for skill-neutral innovation rejected the hypothesis in ten industries in favor of skill-using technical change. The results suggest that in studies of Canadian manufacturing, aggregation across labor inputs is inappropriate.