The Models of Personal Incomes in USA |
| P. Łukasiewicza, K. Karpioa and A. Orłowskia,b
a Katedra Informatyki SGGW, Nowoursynowska 159, 02-776 Warszawa, Poland b Instytut Fizyki PAN, al. Lotników 32/46, 02-668 Warszawa, Poland |
| Full Text PDF |
| The shapes of distributions of personal incomes in USA have been investigated based on the data for 1993 to 2008. Comparisons between four models utilizing various number of parameters have been performed. The studies showed that the empirical data is described the best by the three-parameter Dagum model. Values of the models parameters indicate that the distribution of personal incomes can be regarded as zero-modal one. However, one-parameter exponential model shows a good agreement with data and can be treated as a good approximation of empirical distribution with the exception of the region with very high incomes. The high-income region is characterized by the relatively great number of events and is described much better by the Dagum distribution. |
| DOI: 10.12693/APhysPolA.121.B-82 PACS numbers: 89.65.-s, 89.65.Cd |