Becker, G. S. (1965). A Theory of the Allocation of Time. The economic journal, 493-517. 올린이:서울대학교 행복연구센터 5월 10, 2021 초록 없음 Becker, G. S. (1965). A Theory of the Allocation of Time. The economic journal, 493-517. https://doi.org/10.2307/2228949