Project Summary

Work at the intersection of physics and economics has largely focused on networks and random walks of some sort, but a significant subset of the literature is concerned with modeling repeated stochastic interactions between agents in a population. Stochastic transfers (of capital, wealth...) can be understood via a kinetic theory, and this approach can shed a new light on some empirical scaling properties.


  1. A kinetic theory of Gibrat’s law
  2. Urn model for products’ shares in international trade