“…Apart from theoretical concerns (see, for example, Mongin, 2001), the literature suggests that the relationship between a social planner's distributional preferences and income distributions is more complex than stated by 3 The large existing body of experimental literature concerned with redistribution problems comprises, for example, Cowell, 1992, 2000;Ballano and Ruiz-Castillo, 1993;Frohlich and Oppenheimer, 1994;Seidl, 1994a, 1994b;Bernasconi, 2002;Bosmans and Schokkaert, 2004;Traub et al, 2005Traub et al, , 2008. However, to our best knowledge this is the first study to contrast empirical findings concerning the change of institutions such as the pension system with experimental micro data.…”