There is much controversy on the division of 19 municipalities for a highly urbanised region, which is considered as (half of) one city by most people. Some politicians mock the "19 baronies" and want to merge the municipalities under one city council and one mayor. That would lower the number of politicians needed to govern Brussels, and centralise the power over the city to make decisions easier, thus reduce the overall running costs. The current municipalities could be transformed into districts with limited responsibilities, similar to the current structure of Antwerp or to structures of other capitals like the boroughs in London or "arrondissements" in Paris, to keep politics close enough to the citizen.