An experimental study of collective deliberation

Publication Type:
Journal Article
Econometrica, 2011, 79 (3), pp. 893 - 921
Issue Date:
Filename Description Size
Thumbnail2012005034OK.pdf452.96 kB
Adobe PDF
Full metadata record
We study the effects of deliberation on collective decisions. In a series of experiments, we vary groups' preference distributions (between common and conflicting interests) and the institutions by which decisions are reached (simple majority, two-thirds majority, and unanimity). Without deliberation, different institutions generate significantly different outcomes, tracking the theoretical comparative statics. Deliberation, however, significantly diminishes institutional differences and uniformly improves efficiency. Furthermore, communication protocols exhibit an array of stable attributes: messages are public, consistently reveal private information, provide a good predictor for ultimate group choices, and follow particular (endogenous) sequencing. © 2011 The Econometric Society.
Please use this identifier to cite or link to this item: