We analyze the exit dynamics of pedestrians who are initially confined in a room. Pedestrians are modeled as cellular automata and compete to escape via a known exit at the soonest possible time. A pedestrian could move forward, backward, left or right within each iteration time depending on...

We show that allelomimesis is a generic mechanism that could explain why the cluster-size distribution D(s) of diverse social aggregates such as animal groups and socio-economic entities all fit into a power-law distribution: D(s)∝s−τ, where τ is the critical exponent. Roughly,...