We experimentally investigate information aggregation through majority voting when some voters are biased. In such situations, majority voting can have a "dark side", that is, result in groups making choices inferior to those made by individuals acting alone. In line with theoretical...

We experimentally investigate information aggregation through majority voting when some voters are biased. In such situations, majority voting can have a 'dark side', i.e. result in groups making choices inferior to those made by individuals acting alone. We develop a model to predict how two...