This paper examines the differences between the subsequent careers of high school and college graduate workers based on a direct role of college graduation with regard to the revelation of workers' individual abilities. Using NLSY79, we document a positive relationship between off-the-job...

Ten cities in Korea have recently changed their high school system from "sorting" to "mixing" where students are assigned regardless of their academic abilities. We report that the number of high school graduates entering top universities has significantly decreased after the change.