"The phenomenon of slum formation has grown in scale and has produced a variety of local or regional settlement types, such as favelas and clandestine settlements in Brazil, barriadas in Peru, katchi abadis in Pakistan, gecekondu in Turkey, and pirate land subdivisions in Colombia. Despite these local differences, the phenomenon has many common characteristics: the formal land delivery system is not working for many people; land prices are skyrocketing; individuals are trading land and property rights regardless of legal status as a way to access a place to live and legitimize their right to the city ..." (Quoted from paper)