@unpublished{Fitzsimons2010,
author = {Emla Fitzsimons and Bansi Malde},
title = {Empirically probing the quantity-quality model },
year = {2010},
month = {Sep},
doi = {10.1920/wp.ifs.2010.1020},
issn = {1742-0415},
url = {http://www.ifs.org.uk/wps/wp1020.pdf},
}