Wagstaff A, van Doorslaer E, van der Burg H, Calonge S, Christiansen T, Citoni G, Gerdtham U-G, Gerfin M, Gross L, Häkinnen U, John J, Johnson P, et alApril 1999Journal article Journal:Journal of Public EconomicsVolume:72Issue:1, Elsevier, pp.73 - 98No abstract availableKeywords:38 Economics , 3801 Applied Economics , 10 Reduced Inequalities DOI10.1016/s0047-2727(98)00085-1