We compare signaling by words and actions in a one-shot 2-person public good game with private information. The informed player, who knows the exact return from contributing, can signal by contributing first (actions) or by sending a costless message (words). Words can be about the return or...

This paper presents elements of a cognitive theory of the firm, from the perspective of embodied cognition.It entails the notion of 'cognitive distance' between people that have developed their cognition in different environments. This yields the notion of the firm as a 'focusing device', to...

Abstract: When it comes to economic reforms in developing countries, many economists agree on broad objectives (such as fostering outward orientation). Broad objectives, however, can be pursued in many di¤erent ways, and policy experimentation is often indispensable for learning which...

Abstract: We study the effects of improvements in eBay’s rating mechanism on seller exit and continuing sellers’ behavior. Following a large sample of sellers over time, we exploit the fact that the rating mechanism was changed to reduce strategic bias in buyer rating. That improvement did...

A sophisticated player is an individual who takes the action of the opponents, in a strategic situation, as determined by decision of rational opponents, and acts accordingly. A sophisticated agent is rational in the choice of his action, but ignores the fact that he is part of a strategic...

This paper considers the financing of a research project under uncertainty about the time of completion and the probability of eventual success.The uncertainty about future success gradually diminishes with the arrival of additional funding.The entrepreneur controls the funds and can divert...

This paper models the effect of a HIV/AIDS epidemic on saving behavior and studies the welfare effects of testing for HIV. The model specifies a utility function that includes both regular consumption, and medical expenditures. Medical expenditures generate more utility if individuals are HIV...