This paper studies the impact of interaction topologies on individual and aggregate behavior in environments with social interactions. We study social interaction games of an infnitely large population with local and global externalities. Local externalities are limited within agents'...

The diffusion of two competitive, interchangeable, and durable goods is studied under the framework of a spatial game where consumers are distributed on a two-dimensional square lattice and play 3$\times$3 symmetric coordination-like games with their nearest neighbors. There are three...

Attempts by governments to stop bubbles by issuing warnings seem unsuccessful. This paper examines the effects of public warnings using a simple model of riding bubbles. We show that public warnings against a bubble can stop it if investors believe that a warning is issued in a definite range of...

When fairly homogeneous taxpayers are affected by common income shocks, a tax agency’s optimal auditing strategy consists of auditing a low-income declarer with a probability that (weakly) increases with the other taxpayers’ declarations. Such policy generates a coordination game among...

This article proposes a reading of the armed conflict from an evolutionary design that takes into account the concept of private protection agencies in the works of Schelling / Nozick / Gambetta. Their aim is to assess the dynamics of conflict and changes from its author's scientific output. A...

When fairly homogeneous taxpayers are affected by common incomeshocks, a tax agency's optimal auditing strategy consists of auditing alow-income declarer with a probability that (weakly) increases with theother taxpayers' declarations. Such policy generates a coordination gameamong taxpayers,...

The Aumann (1990) conjecture states that cheap-talk messages do not necessarily help to coordinate on efficient Nash equilibria. In an experimental test of Aumann’s conjecture, Charness (2000) found that cheap-talk messages facilitate coordination when they precede the action, but not when...

I present a model of social learning over an exogenous, directed network that may be readily nested within broader macroeconomic models with dispersed information and combines the attributes that agents (a) act repeatedly and simultaneously; (b) are Bayes-rational; and (c) have strategic...

We generalize the "No-trade" theorem for finite unawareness belief structures in Heifetz, Meier, and Schipper (2009) to the infinite case.

This paper aims to defend the importance of the information and persuasion in financial markets. The conviction relates to the developments of Argumentation Theory (AT). Understand that economic agents react according to the information they have, and that beliefs play an important role because...