A new Q-Q plot and its application to income data 
 
 

Summary
A common practice to analyze income data is to fit a model to data and then compute all the inequality indices that appear useful as functions of the estimated shape parameters. In a sense, the choice of the probability distribution and the choice of the inequality index are independent. This paper develops a technique which derives simultaneously the model for the distribution of incomes and the measure of economic inequality.

keywords
order statistics, direct search estimates, graphical techniques, Burr 3 model
 

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