All of these factors have been found to affect inequality, also in the Nordics (Robling and Pareliussen 2017, Danish Economic Council 2016, NOU 2009, Eika et. The development for Norway should betaken as a rough indication given the limited number of observations prior to 2008. National sources report an increase of around four Gini points from 1990 to 2014 (Statistics Norway), but the applied household income definition is not fully comparable with the one used for OECD figures (see Causa et al.