This paper aims to experimentally investigate how individual willingness to pay for a lottery is affected by using a new way of representing of probabilistic ambiguity. Thus we can see how individual valuation reacts to different degrees of ambiguity probability information provided to subjects....

Experimental research on decision making under risk has until now always employed choicedata in order to evaluate the empirical performance of expected utility and the alternative nonexpectedutility theories. The present paper performs a similar analysis which relies on pricingdata instead of...

In the 40’s and early 50’ two decision theories were proposed and have since dominated the sceneof the fascinating field of decision-making. In 1944 – when von Neumann and Morgenstern showedthat if preferences are consistent with a set of axioms then it is possible to represent these...

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

In his ‘Simple model of herd behaviour’, Banerjee (1992) shows that – in a sequential game – if the first two players have chosen the same action, all subsequent players will ignore their own information and start a herd, an irreversible one. The points of strength of Banerjee’s model...

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...