The New Palgrave Dictionary of Economics

2018 Edition
| Editors: Macmillan Publishers Ltd

Lognormal Distribution

  • P. E. Hart
Reference work entry
DOI: https://doi.org/10.1057/978-1-349-95189-5_1089

Abstract

If there is a number, ϴ, such that Y = loge(Xϴ) is normally distributed, the distribution of X is lognormal. The important special case of ϴ = 0 gives the two parameter lognormal distribution, X ~ Λ(μ, σ2) with Y ~ N(μ, σ2), where μ and σ2 denote the mean and variance of logeX. The classic work on the subject is by Aitchison and Brown (1957). A useful survey is provided by Johnson et al. (1994, ch. 14). They also summarize the history of this distribution: the pioneer contributions by Galton (1879) on its genesis, and by McAlister (1879) on its measures of location and dispersion, were followed by Kapteyn (1903), who studied its genesis in more detail and also devised an analogue machine to generate it. Gibrat’s (1931) study of economic size distributions was a most important development because of his law of proportionate effect. Since then there has been an immense number of applications of the lognormal distribution in the natural, behavioural and social sciences.

Keywords

Central limit theorems Gibrat’s Law Lognormal distribution 
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Bibliography

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Copyright information

© Macmillan Publishers Ltd. 2018

Authors and Affiliations

  • P. E. Hart
    • 1
  1. 1.