@unpublished{Foley2009, author = {Kelly Foley and Giovanni Gallipoli and David A. Green}, title = {Ability, parental valuation of education and the high school dropout decision}, year = {2009}, month = {Nov}, doi = {10.1920/wp.ifs.2009.0921}, issn = {1742-0415}, url = {http://www.ifs.org.uk/wps/wp0921.pdf}, }