Joshua M. Epstein is a Senior Fellow in Economic Studies at The Brookings Institution and a Member of the External Faculty of the Santa Fe Institute. He holds a Ph.D. in Political Science from M.I.T., and has taught Complex Systems at Princeton and the Santa Fe Institute Summer School. His books include Measuring Military Power Conventional Force Reductions: A Dynamic Assessment and, with coauthor Robert Axtell, Growing Artificial Societies: Social Science from the Bottom Up. He lives in Washington, D.C., with his wife Melissa and their daughter Anna Matilda.

• About the Santa Fe Institute -- Santa Fe Institute Editorial Board December 1996 -- Santa Fe Institute Studies in the Sciences of Complexity -- Introduction -- On The Mathematical Biology of Arms Races, Wars, and Revolutions -- An Adaptive Dynamic Model of Combat -- Imperfect Collective Security and Arms Race Dynamics: Why a Little Cooperation Can Make a Big Difference -- Revolutions, Epidemics, and Ecosystems: Some Dynamical Analogies -- A Theoretical Perspective on The Spread of Drugs -- An Introduction to Nonlinear Dynamical Systems