This paper reports experiments conducted to test whether ambiguity affects individual behaviour in games of strategic complements and strategic substitutes. We study subject behaviour in the presence of ambiguity in order to ascertain whether subjects' perception of ambiguity differs between a...

This paper studies the impact of ambiguity in the best shot and weakest link models of public good provision. The models are first analysed theoretically. Then we conduct experiments to study how ambiguity affects behaviour in these games. We test whether subjects' perception of ambiguity...

This paper studies the impact of ambiguity in the best shot and weakest link models of public good provision. The models are ?rst analysed theoretically. Then we conduct experiments to study how ambiguity affects behaviour in these games. We test whether subjects? perception of ambiguity differs...

We consider a modified voluntary contributions mechanism (VCM) game where the marginal per capita return (mpcr) for a group of responders is endogenously determined by the proposer. We allow the proposer to implement a mpcr that is different to the mpcr initially announced, after observing...

In this paper we consider the effect of ambiguity on the private provision of public goods. Equilibrium is shown to exist and be unique. We examine how provision of the public good changes as the size of the population increases. We show that when there is uncertainty there may be less...