Which decision rule should we use to make a binary collective choice? While voting procedures are applied ubiquitously … qualified majority voting. Our result shows that using a VCG mechanism is not superior to voting in general and justifies the … use of voting mechanisms. It thereby could explain why many decision rules employed in practice do not rely on monetary …

affects information aggregation at the deliberation and voting stages, leading to sharply different committee error rates than … under secrecy. This occurs despite subjects revealing more information under transparency than theory predicts. …

than in theory. …