Zipf's and Taylor's laws

@article{James2018ZipfsAT,
  title={Zipf's and Taylor's laws},
  author={Charlotte James and Sandro Azaele and Amos Maritan and Filippo Simini},
  journal={Physical Review E},
  year={2018}
}
Zipf's law states that the frequency of an observation with a given value is inversely proportional to the square of that value; Taylor's law, instead, describes the scaling between fluctuations in the size of a population and its mean. Empirical evidence of the validity of these laws has been found in many and diverse domains. Despite the numerous models proposed to explain the presence of Zipf's law, there is no consensus on how it originates from a microscopic process of individual dynamics… 
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