The Evolution of the Exponent of Zipf's Law in Language Ontogeny

@article{Baixeries2013TheEO,
  title={The Evolution of the Exponent of Zipf's Law in Language Ontogeny},
  author={Jaume Baixeries and Brita Elvev{\aa}g and Ramon Ferrer-i-Cancho},
  journal={PLoS ONE},
  year={2013},
  volume={8}
}
It is well-known that word frequencies arrange themselves according to Zipf's law. However, little is known about the dependency of the parameters of the law and the complexity of a communication system. Many models of the evolution of language assume that the exponent of the law remains constant as the complexity of a communication systems increases. Using longitudinal studies of child language, we analysed the word rank distribution for the speech of children and adults participating in… 
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