Modelling using an extended Yule distribution
A biparametric discrete distribution that extends the Yule distribution is presented. It belongs to the family of distributions generated by the Gaussian hypergeometric function and it can be expressed as a generalized beta mixture of a geometric distribution. The introduction of a new parameter makes the model very suitable to fit the empiric distribution tails and the effect of infinite variance is not possible. Several examples show more accurate fits when the extended distribution is used and the results are compared with other biparametric extensions of the Yule distribution.
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- Chung, Kee H & Cox, Raymond A K, 1994. "A Stochastic Model of Superstardom: An Application of the Yule Distribution," The Review of Economics and Statistics, MIT Press, vol. 76(4), pages 771-75, November.
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- Spierdijk, Laura & Voorneveld, Mark, 2007.
"Superstars without talent? The Yule distribution controversy,"
SSE/EFI Working Paper Series in Economics and Finance
658, Stockholm School of Economics, revised 09 May 2007.
- Laura Spierdijk & Mark Voorneveld, 2009. "Superstars without Talent? The Yule Distribution Controversy," The Review of Economics and Statistics, MIT Press, vol. 91(3), pages 648-652, August.
- Ginebra, Josep & Puig, Xavier, 2010. "On the measure and the estimation of evenness and diversity," Computational Statistics & Data Analysis, Elsevier, vol. 54(9), pages 2187-2201, September.
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