Recall our goal from last class: we wanted to take a game that has nice properties when described as a game of complete information, and then augment it with an extremely weak “mediator”, such that in the new game, we can implement the equilibria of the original (complete information) game as simple ex-post equilibria, which do not require players to know anything about each other’s types. Some...

This paper reports data for a series of two-person games that are played only once. These games span the standard categories: static and dynamic games with complete and incomplete information. For each game, the treasure is a treatment for which behavior conforms quite nicely to the predictions of the Nash equilibrium or relevant refinement. In each case we change a key payoff parameter in a ma...

Ideas, ranging from product preferences to political views, spread through social interactions. These interactions may determine how ideas are adopted within a market and which, if any, become dominant. In this paper, we introduce a model for Dynamic Influence in Competitive Environments (DICE). We show that existing models of influence propagation, including linear threshold and independent ca...

The Dynamic Turn in logic makes actions of communication and general information update into explicit objects of investigation. This paper is a brief tour of this research program in a new version, bringing together ideas from logic, philosophy, computer science, and game theory. In particular, we discuss epistemic, dynamic, and temporal logics, belief revision, and game logics.

We present a distribution-free model of incomplete-information games, both with and without private information, in which the players use a robust optimization approach to contend with payoff uncertainty. Our “robust game” model relaxes the assumptions of Harsanyi’s Bayesian game model, and provides an alternative distribution-free equilibrium concept, which we call “robust-optimization equilib...

Objective: It is believed that drivers play a crucial role in accidents. Paying attention to brake lights, a driver may find out about danger and react. Rear-end collision accidents refer to the part of the accidents due to driver inattention or slow reaction. The aim of this study was to determine the effect of dynamic flashing brake lights (7 Hz) on drivers' brake reaction time using the driv...