The theoretical approach in dealing with the aggregation of information in markets in general, and financial markets in particular considers information as an exogenous element to the system, focusing just on conditions and consequences of the efficient incorporation of information into prices....

Seminal models of herd behaviour and informational cascades point out existence of negative information externalities, and propose to 'destroy' information in order to achieve social improvements. Although in the last years many features of herd behaviour and informational cascades have been...

In the context of eliciting preferences for decision making under risk, we ask the question: which might be the 'best' method for eliciting such preferences?ʺ. It is well known that different methods differ in terms of the bias in the elicitation; it is rather less well-known that different...