@unpublished{A.2009,
author = {David A. Green and James Townsend},
title = {Understanding the wage patterns of Canadian less skilled workers: the role of implicit contracts},
year = {2009},
month = {Nov},
doi = {10.1920/wp.ifs.2009.0922},
issn = {1742-0415},
url = {http://www.ifs.org.uk/wps/wp0922.pdf},
}