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Experimental investigation of Russian citizens expenses on new cars and a correspondence to their income
The question of distribution of citizens expenses in modern Russia is experimentally investigated. New cars were chosen as representative group of the acquired goods as well as earlier. Results of the analysis of sales of new cars for 2007–2009 are presented below. Main “body” of density of probability to find certain number of cars depending on their price, since some initial price up to ~ k$60, is an exponential distribution. The found feature of distribution (unlike 2003–2005) was an existence of minimum price. For expensive cars (distribution “tail”), the asymptotic form is the Pareto distribution with a hyperbole exponent a little greater, than measured earlier for 2003–2005. The results turned up to be similar to direct measurements of distribution of tax declarations on their size, submitted to the USA in 2004 where exponential distribution of the income of citizens, since some minimum, with some asymptotic in the form of Pareto's distribution also was observed.
- , . New multi-parametric analytical approximations of exponential distribution with power law tails for new cars sells and other applications. // Physica A: Statistical Mechanics and its Applications. — 2015. — V. 427. — P. 1. DOI: 10.1016/j.physa.2015.01.068
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