“…The current revenue-sharing system including fiscal federal transfers is based on population as well as on multipliers which only reflect differences in population density (Söllner, 2001). Although, additional discretionary transfers exist, in part to account for differences in long-term unemployment rates, they do not take into account additional socioeconomic and demographic characteristics, such as migrant status, or age composition, in the population structure across the Länder, which contribute to different levels of demand for public services provided by Länder and municipalities on their territory (Feld et al, 2013;Heinemann, 2012). It should be considered to enlarge the set of criteria based on which transfers are provided, e.g.…”