Fig. 4

Gini coefficient of daily wage. The figure shows the Gini coefficient of daily wages in \(1\times 1\) kilometer grid cells in Berlin (upper panel, 759 grids) and Munich (bottom panel, 289 grids) in 2000, 2010 and 2017. Cells with light purple color indicate low Gini, and dark purple cells indicate high Gini. The color scale is fixed for each feature and approximately ranges from the first to the ninth decile in all cities with more than 100,000 inhabitants. The data base of the maps is social security data from the IAB. For data protection reasons, we removed cells with fewer than 20 residents. Blue areas in the background represent water, green areas forests, light-yellow areas settlements, solid gray lines roads and dashed gray lines railroads