@article{Ramey2009,
author = {Ramey, V.},
title= {Time spent in home production in the twentieth-century United States: New estimates from old data},
year = {2009},
doi = {10.1017/S0022050709000333},
journal = {The Journal of Economic History},
volume = {69},
number = {1},
pages = {1--47},
}