While this process may be predicated on the idea that increases in autonomy and financial transfers will benefit the absorbed areas as well as the original city, in reality there are no guarantees that the social and physical infrastructure will be adequate for what may now be a greatly expanded and more complex area. Another concern is that, given that population density is given little regard, this results in cities paying less attention to developing dense and well-connected urban environment, by instead favouring ad-hoc development which can quickly add to their population figures. This will make the provision of public services, such as wastewater treatment, solid waste collection and mass public transport extremely costly and inefficient. In this way, the classification system may also have an impact in limiting longer-term economic investments that may suit the particular characteristics of a given city.