@unpublished{Meghir2008,
author = {Costas Meghir and David Phillips},
title = {Labour supply and taxes},
year = {2008},
month = {Mar},
doi = {10.1920/wp.ifs.2008.0804},
issn = {1742-0415},
url = {http://www.ifs.org.uk/wps/wp0804.pdf},
}