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GEN Keynote Speech Raj Chetty - The Long-Term Impacts of Teachers - Part 1

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Uploaded on Jan 7, 2012

Inaugural GEN Annual Conference 2011, Wellington, NZ
Keynote Speech, Professor Raj Chetty (Harvard University)
"The Long-Term Impacts of Teachers: Teacher Value-Added and Student Outcomes in Adulthood"
Abstract.
The use of test-score-based "value-added" (VA) measures to evaluate teachers is controversial because there is little evidence on whether high VA teachers improve student outcomes in adulthood. We provide new evidence on this question by tracking 2.5 million children from childhood to early adulthood using administrative records. We find that high VA teachers increase their students' probability of college attendance, raise earnings, reduce teenage birth rates, and improve the quality of the neighborhood in which their students live in adulthood. The impacts of teacher VA are roughly constant across grades 4-8. A one standard deviation improvement in teacher VA in a single grade raises earnings by 1% at age 28. Replacing a teacher whose VA is in the bottom 5% with an average teacher would increase students' lifetime income by approximately $300,000 for the average classroom in our sample.

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