PT - JOURNAL ARTICLE AU - Guyon, Nina AU - Maurin, Eric AU - McNally, Sandra TI - The Effect of Tracking Students by Ability into Different Schools AID - 10.3368/jhr.47.3.684 DP - 2012 Jul 01 TA - Journal of Human Resources PG - 684--721 VI - 47 IP - 3 4099 - http://jhr.uwpress.org/content/47/3/684.short 4100 - http://jhr.uwpress.org/content/47/3/684.full SO - J Hum Resour2012 Jul 01; 47 AB - The tracking of pupils by ability into elite and nonelite schools represents a controversial policy in many countries. There is no consensus on how large the elite track should be and little agreement on the effects of any further increase in its size. This paper presents a natural experiment where the increase in the size of the elite track was followed by a significant improvement in average educational outcomes. This experiment provides a rare opportunity to isolate the overall effect of allowing entry to the elite track for a group that was previously only at the margin of being admitted.