The Local Average Treatment Effect (LATE) interpretation of the IV estimates of the returns to schooling is becoming increasingly popular. Typically, researchers reporting LATE estimates do not provide systematic evidence that there is substantial heterogeneity across different ability levels in returns, and without such evidence, the LATE interpretation is short of being compelling. The recent abolition of Grade 13 in Ontario’s secondary school system provides a unique opportunity to measure the benefits of an extra year of high school for high-ability students (those bound for college), rather than dropouts. I present a simple factor model which allows the value-added of Grade 13 (in terms of achievement) to be estimated, generalizing the standard difference-in-differences estimator to correct for heterogeneity in ability measurement across college subjects. The main finding is that the estimated return to an extra year of high school in terms of human capital is small for these high-ability students: students coming out of Grade 13 have a 2.2 point advantage (on a 100 point scale) over students from Grade 12, the estimated return to Grade 13 being around 2 percent. This evidence indicates that there is substantial heterogeneity in the return to an additional year of high school in the direction assumed in the prior literature.
Download Info
To download:
If you experience problems downloading a file, check if you have the
proper application to
view it first. Information about this may be contained
in the File-Format links below. In case of further problems read
the IDEAS help
page. Note that these files are not on the IDEAS
site. Please be patient as the files may be large.
Publisher Info
Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number
3098.
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.: