We investigate traders' behaviour in an experimental asset market where uninformed agents cannot be sure about the presence of insiders. In this framework we compare two trading institutions: the continuous double auction and the call market. The purpose of this comparison is to test which of...

In this paper we investigated group size impact on risk aversion when a majority rule is applied. Drawing on the widely used Holt and Laury's (2002) lottery pairs, we observed a risky shift for both individual and groups regardless of their size. However, groups choices are shown to be closer to...

Environmental psychologists suggest that people feelings and emotions determine what they do and how they do it. According to the stimulus organism respons model (SOR), the environment creates a behavioral/emotional response in individuals that, in turn, induces approach or avoidance behaviors....

In this paper we aim - through an 'experimentally-adapted' Contingent Valuation survey - to look into the attributes of Ghanaians' willingness-to-pay for green products. This would help us addressing two main issues: first, from a theoretical point of view, we shall assess whether Ghanaians show...

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?”. It is well known that different methods differ in terms of the bias in the elicitation; it is rather less well-known that...

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?". It is well known that different methods differ in terms of the bias in the elicitation; it is rather less well-known that different...

Previous research indicates that risky and uncertain marginal returns from the public good significantly lower contributions. This paper presents experimental results illustrating that the effects of risk and uncertainty depend on the employed parameterization. Speci?cally, if the value of the...

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