Abstract
The European Union Statistics on Income and Living Conditions (EU-SILC) is the main source of information about poverty and economic inequality in the member states of the European Union. The sample sizes of its annual national surveys are sufficient for reliable estimation at the national level but not for inferences at the sub-national level, failing to respond to a rising demand from policy-makers and local authorities. We provide a comprehensive map of median income, inequality (Gini coefficient and Lorenz curve) and poverty (poverty rates) based on the equivalised household income in the countries in which the EU-SILC is conducted. We study the distribution of income of households (pro-rated to its members), not merely its median (or mean), because we regard its dispersion and frequency of lower extremes (relative poverty) as important characteristics. The estimation for the regions with small sample sizes is improved by the small-area methods. The uncertainty of complex nonlinear statistics is assessed by bootstrap. Household-level sampling weights are taken into account in both the estimates and the associated bootstrap standard errors.
Acknowledgements
The Department of Statistical Science, Sapienza University, Rome, Italy, where the project described in this paper commenced during the first author's visit (N.T.L.) in May–June 2009, is acknowledged for its hospitality. Support for N.T.L. by the grants SEJ–2006-13537 from the Spanish Ministry of Science and Technology and GAČR 402/09/0515 from the Science Foundation of Czech Republic is acknowledged.