Appendix B, Mathematical Discussion of Relation between Age, Earnings, and Wealth, Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition

Gary S. Becker, Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition (The University of Chicago Press, 1994), https://www.nber.org/books-and-chapters/human-capital-theoretical-and-empirical-analysis-special-reference-education-third-edition/appendix-b-mathematical-discussion-relation-between-age-earnings-and-wealth-human-capital.