@article{Hoffman1979,
author = {Hoffman, L.W. and Manis, J.D.},
title= {The value of children in the United States: A new approach to the study of fertility},
year = {1979},
doi = {10.2307/351628},
journal = {Journal of Marriage and the Family},
volume = {41},
number = {3},
pages = {583--596},
}