Data

Local income inequality data for Spain:



Brief overview of the dataset:

We present a new database  based on personal income tax (PIT) microdata provided by the Spanish Institute for Fiscal Studies in collaboration with the Spanish Tax Administration Office.  These micro-level PIT samples are only representative at the provincial level and, therefore require implementing a reweighting procedure to derive a representative income sample at the municipal level. The methodology relies on a distance function optimization-based approach for survey reweighting, which consists of adjusting the original micro-data sample weights in order to make them representative at the local level. Then, local income distributions and selected summary measures are derived.

The database comprises Spanish municipalities with a population of more than 5,000 inhabitants (excluding the Basque Country and Navarre). For each year, the database provides unique data on personal income (per capita and per taxpayer income and median income) for each municipality. Information on local income distributions is summarized by means of quintiles. In addition, inequality measures (Gini and Atkinson 0.5 indexes), and a number of indicators of income concentration among top income earners are provided (top 1%, 0.5% and 0.1% income shares measures).


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