文章基本信息

标题：THE USE OF FINITE MIXTURES OF LOGNORMAL DISTRIBUTIONS IN THE MODELING OF INCOMES IN THE CZECH REPUBLIC
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作者：Ivana Mala
期刊名称：Research Journal of Economics, Business and ICT
印刷版ISSN：2045-3345
电子版ISSN：2047-7848
出版年度：2011
卷号：4
出版社：English Time Schools & Overseas Education
摘要：Finite mixtures of probability distributions are used for the modeling of probability distributions of incomes. These distributions are typically nonhomogenous, heavy tailed and positively skewed. In the text a net annual incomes per capita of the Czech households in 2004 and 2008 are analysed. The finite mixtures of lognormal distributions are fitted into data from the survey Results of the Living Conditions Survey (a national module of the European Union Statistics on Income and Living Conditions (EUSILC)) that has been held by the Czech Statistical Office since 2005. Firstly, the components with known group membership are formed according to the education of a head of a household (factor with 5 levels) and number of children (2 levels factor children yes/no and more detailed 5 levels factor) in the household. Secondly, data are divided into groups with unknown group membership in order to obtain the best possible fit. In this case 1 to 5 components in the mixture are used. All models fitted into data are compared with the use of Akaike criterion.
关键词：Finite mixture; Lognormal distribution; Income modelling; Czech Republic