@article{Koulovatianos2005,
author = {Koulovatianos, C. and Schr\"oder, C. and Schmidt, U.},
title= {On the income dependence of equivalence scales},
year = {2005},
doi = {10.1016/j.jpubeco.2004.09.005},
journal = {Journal of Public Economics},
volume = {89},
pages = {967--996},
}