I describe a structural method to quantify the contribution of different elements of social choice to the level of redistribution. Estimating a DSGE model with microdata on the support for redistribution, I find that if voters disregarded their ideological views on welfare policies,...

Experiments evaluate the fit of human behaviour to the Shapley-Shubik power index (SSPI), a formula of voter power. Groups of six subjects with differing votes divide a fixed purse by majority rule in online chat rooms. Earnings proxy for measured power. Chat rooms and processes for selecting...