Peer Effects in Education
In ocá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365r words, cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365re are three findings. You should want your kids to be in a class with (1) high-achieving kids and (2) low variance in achievement. And (3) you should care more if you have a smart kid.We find that students benefit from having higher achieving schoolmates and from having less variation in cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 quality of peers in cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365ir schools.... The marginal effect of a one percent increase in cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 quality of peers on student achievement is equivalent to between 8−15% of a one percent increase in one’s own earlier achievement.
We find that peer effects operate in a heterogeneous manner. High ability students benefit more from having higher achieving schoolmates and from having less variation in peer quality than students of lower ability.
Effect (2) suggests that ability tracking is generally beneficial, because it puts all kids in low-variance environments. However, because tracking raises cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 average peer for high-ability kids and lowers cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 average peer for low-ability kids, effect (1) makes high-ability kids achieve more and low-ability kids achieve less. Effect (3) cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365n compounds cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 increased inequality.
In short, ability tracking appears to be a policy that increases efficiency and decreases equality--anocá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365r example of cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 Big Trade-off.
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