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Can Higher-Achieving Peers Explain the Benefits to Attending Selective Schools?: Evidence from Trinidad and Tobago

By C. Kirabo Jackson


Using exogenous secondary school assignments to remove self-selection bias to schools and peers within schools, I credibly estimate both (1) the effect of attending schools with higher-achieving peers, and (2) the direct effect of short-run peer quality improvements within schools, on the same population. While students at schools with higher-achieving peers have better academic achievement, within-school short-run increases in peer achievement improve outcomes only at high-achievement schools. Short-run (direct) peer quality accounts for only one tenth of school value-added on average, but at least one-third among the most selective schools. There are large and important differences by gender.

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  4. (2007). Elite Schools and Academic Performance." mimeo,
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  9. (2009). Mechanisms and Impacts of Gender Peer Effects at School." working paper,
  10. (1997). Models of the self: Self-construals and gender."
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  12. Peer Effects in European Primary Schools: Evidence from PIRLS." Institute for the Study of Labor (IZA) Discussion Papers
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  14. (1978). Sex differences in influenceability."
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  19. (2008). The Consequences of Going to a Better School." mimeo,
  20. (2006). The effects of generalized school choice on achievement and stratification: Evidence from Chile's voucher program,"
  21. (2009). The gender difference of peer influence in higher education."
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  23. (1974). The psychology of sex differences. Stanford:

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