1. To the same effect, see Garold Stasser & Beth Dietz-Uhler, Collective Choice, Judgment, and Problem Solving;Reid Hastie;Blackwell Handbook of Group Psychology: Group Processes,1983
2. Comparing Micro and Macro Rationality
3. Propagation of Individual Bias Through Group Judgment: Error in the Treatment of Asymmetrically Informative Signals;William P Bottom;25 J. Risk & Uncertainty,2002