A Theory of the Allocation of Time and Goods Over the Life Cycle

Gilbert Ghez and Gary S. Becker, The Allocation of Time and Goods over the Life Cycle (NBER, 1975), chap. 1, https://www.nber.org/books-and-chapters/allocation-time-and-goods-over-life-cycle/theory-allocation-time-and-goods-over-life-cycle.