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Inheritances, social classes, and wealth distribution

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  • Pedro Patrício
  • Nuno A M Araújo

Abstract

We consider a simple theoretical model to investigate the impact of inheritances on the wealth distribution. Wealth is described as a finite resource, which remains constant over different generations and is divided equally among offspring. All other sources of wealth are neglected. We consider different societies characterized by a different offspring probability distribution. We find that, if the population remains constant, the society reaches a stationary wealth distribution. We show that inequality emerges every time the number of children per family is not always the same. For realistic offspring distributions from developed countries, the model predicts a Gini coefficient of G ≈ 0.3. If we divide the society into wealth classes and set the probability of getting married to depend on the distance between classes, the stationary wealth distribution crosses over from an exponential to a power-law regime as the number of wealth classes and the level of class distinction increase.

Suggested Citation

  • Pedro Patrício & Nuno A M Araújo, 2021. "Inheritances, social classes, and wealth distribution," PLOS ONE, Public Library of Science, vol. 16(10), pages 1-12, October.
    • Handle: RePEc:plo:pone00:0259002
    DOI: 10.1371/journal.pone.0259002
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