2013 Bargain, Decoster, Dolls, Neumann, Peichl Siegloch SCW Welfare, LS and Heterogeneous Preferences Posted on January 7, 2016January 7, 2016 by Sebastiaan Maes 2013 Bargain, Decoster, Dolls, Neumann, Peichl Siegloch SCW Welfare, LS and Heterogeneous Preferences