On the identification of extreme outliers and dragon-kings mechanisms in the upper tail of income distribution

Muhammad Aslam Mohd Safari, Nurulkamal Masseran and Kamarulzaman Ibrahim

Journal of Applied Statistics, 2019, vol. 46, issue 10, 1886-1902

Abstract: The presence of extreme outliers in the upper tail data of income distribution affects the Pareto tail modeling. A simulation study is carried out to compare the performance of three types of boxplot in the detection of extreme outliers for Pareto data, including standard boxplot, adjusted boxplot and generalized boxplot. It is found that the generalized boxplot is the best method for determining extreme outliers for Pareto distributed data. For the application, the generalized boxplot is utilized for determining the exreme outliers in the upper tail of Malaysian income distribution. In addition, for this data set, the confidence interval method is applied for examining the presence of dragon-kings, extreme outliers which are beyond the Pareto or power-laws distribution.

Date: 2019
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Citations: View citations in EconPapers (4)

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DOI: 10.1080/02664763.2019.1566447

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