Ultimatum games have been extensively used in experimental studies. By studying the consequences that restrictions shared by ultimatum games have in subject`s behaviour, this paper argues that some results are falsified by design constraints. This paper also presets a taxonomy of certification,...

Through an experiment this study investigates the effects that verification has on honest traders. This paper demonstrates that by reducing the scope for trust verification can have a negative effect on the behaviour of honest individuals. Specifically, the analysis shows that trustworthy agents...

This paper examines experimental evidence relating to herd behaviour in situations when subjects can learn from each other, and can delay their decision. Subjects acted rationally, gaining from observational learning, despite penalties for delay. Cascades were ubiquitous and reverse-cascades...

This paper offers a simple but rich framework to study communication subject to various constraints such as anonymity requirements, equal treatment of multiple agents, overconfidence of an expert, and garbling, by extending the cheap talk model of Crawford and Sobel (1982). Common to these...

This paper extends the relational contract model in Levin (2003) with shocks to theagent’s cost of effort (agent’s type) to shocks to the principal’s valuation of the agent’seffort (principal’s type). When optimal effort is fully pooled across agent types...

This paper investigates relational incentive contracts with a continuum of privately observedagent types that are persistent over time. For a sufficiently productive relationship,a pooling contract exists in which all agent types continuing the relationshipchoose the same action. Necessary and...