Overall, 72 subjects invest their endowment in four risky assets. Each com-bination of assets yields the same expected return and variance of returns. Illusion of expertise prevails when one prefers nevertheless the self-selected portfolio. After being randomly assigned to groups of four...

This experimental study investigates whether individuals preferbounded rationality over rational choice theory when facing simpleinvestment tasks. First, participants state some personal parametersthat serve as an input to render a theoretical approach, namelysatisficing or optimality,...

The paper explores the applicability of the satisficing approach. Inparticular, we investigate whether basic principles of aspiration formationand satisficing behavior are transferable between similar situations.Individuals are sequentially confronted with two risky investmenttasks, a simple and...

In this paper, we apply the bounded rationality approach to aninvestment situation. In a simple setting where an investor decides betweena riskless bond and a risky asset, we distinguish three aspirationlevels: a lowest threshold that one wants to guarantee, an aspirationlevel given by investing...

Threat power is the ability to impose a great loss on someone else at relativelylow own cost and can be measured by the ratio of other’s and own loss. It can bevaried by assuming that rejecting an ultimatum reduces the payoff of the proposerto its lambda–share and that of the responder to...

This paper focuses on egocentric biases in financial decisions. Subjects first designa portfolio, whereby each combination of assets yields the same expected returnand variance of returns. They are then confronted with two alternative portfolios;the average portfolio and the portfolio of one’s...

Overall, 72 subjects invest their endowment in four risky assets. Each com-bination of assets yields the same expected return and variance of returns. Illusion of expertise prevails when one prefers nevertheless the self-selected portfolio. After being randomly assigned to groups of four...

Overall, 72 subjects invest their endowment in four risky assets. Each combination of assets yields the same expected return and variance of returns. Illusion of expertise prevails when one prefers nevertheless the self-selected portfolio. After being randomly assigned to groups of four subjects...