Abstract
We present a detailed discussion of the role played by memory, and the nature of self-induced shocks, in an evolutionary population competing for limited resources. Our study builds on a previously introduced multiagent system [Phys. Rev. Lett. 82 3360 1999] which has attracted significant attention in the literature. This system exhibits self-segregation of the population based on the “gene” value [Formula presented] (where [Formula presented]), transitions to “frozen” populations as a function of the global resource level, and self-induced large changes which spontaneously arise as the dynamical system evolves. We find that the large, macroscopic self-induced shocks that arise are controlled by microscopic changes within extreme subgroups of the population (i.e., subgroups with “gene” values [Formula presented] and [Formula presented]).
Original language | English (US) |
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Pages (from-to) | 21 |
Number of pages | 1 |
Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
Volume | 70 |
Issue number | 5 |
DOIs | |
State | Published - 2004 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics