@article {What2011,
title = {What Has Happened to Marginal Tax Rates?},
year = {2011},
url = {https://www.esri.ie/publications/what-has-happened-to-marginal-tax-rates},
author = {Callan, T., Crilly, N., Keane, C., and Walsh, J.},
journal = {ESRI Research Bulletin 2011/3/4},
}