Rates of Return from High School Education and Trends over Time

Gary S. Becker, Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition (The University of Chicago Press, 1994), chap. 7, https://www.nber.org/books-and-chapters/human-capital-theoretical-and-empirical-analysis-special-reference-education-third-edition/rates-return-high-school-education-and-trends-over-time.