@unpublished{Attanasio2011,
author = {Orazio Attanasio and Britta Augsburg and Ralph de Haas and Emla Fitzsimons and Heike Harmgart},
title = {Group lending or individual lending?  Evidence from a randomised field  experiment in Mongolia},
year = {2011},
month = {Dec},
doi = {10.1920/wp.ifs.2011.1120},
issn = {1742-0415},
url = {http://www.ifs.org.uk/wps/wp1120.pdf},
}