Common ecology quantifies human insurgency

@article{Bohorquez2009CommonEQ,
  title={Common ecology quantifies human insurgency},
  author={Juan C. Bohorquez and Sean Gourley and Alex Dixon and Michael Spagat and Neil F. Johnson},
  journal={Nature},
  year={2009},
  volume={462},
  pages={911-914}
}
Many collective human activities, including violence, have been shown to exhibit universal patterns. The size distributions of casualties both in whole wars from 1816 to 1980 and terrorist attacks have separately been shown to follow approximate power-law distributions. However, the possibility of universal patterns ranging across wars in the size distribution or timing of within-conflict events has barely been explored. Here we show that the sizes and timing of violent events within different… 
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