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Distribution of the ratio of two independent Dagum random variables

Author

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  • Angiola Pollastri
  • Giovanni Zambruno

Abstract

An estimation procedure of the distribution of the ratio of two independent Dagum random variables is proposed. Such an issue is of remarkable importance when analyzing the characteristics of ratios of economic variables which can be described by the Dagum model. The distribution and density functions are computed via numerical procedures; a numerical method is also proposed, in order to make the computation of the distribution easier and faster. Finally, some empirical investigations are reported, in order to establish the effectiveness of the model, and an application is presented concerning the estimation of the distribution of the ratio between the expenditures of a 2-member and a 1-member household, based on the Banca d’Italia 2006 survey.

Suggested Citation

  • Angiola Pollastri & Giovanni Zambruno, 2010. "Distribution of the ratio of two independent Dagum random variables," Operations Research and Decisions, Wroclaw University of Science and Technology, Faculty of Management, vol. 20(3-4), pages 95-102.
    • Handle: RePEc:wut:journl:v:3-4:y:2010:p:95-102:id:172
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    Cited by:

    1. Stanislaw Maciej Kot, 2023. "Equivalence scales for continuous distributions of expenditure," Equilibrium. Quarterly Journal of Economics and Economic Policy, Institute of Economic Research, vol. 18(1), pages 185-218, March.

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