Blanco Pérez, Cristina; Ramos, Xavi - Institute for the Study of Labor (IZA) - 2008
Labour Market
Research, Discussion Paper 2006-06, University of Aberdeen.
Wagstaff, A., Van Doorslaer, E. (2000) “ Income … social gradient in health: The effect of absolute
and relative income on the individual’s health”, Centre for European …