The Core frame model is a model showing the urban structure of the Central Business District of a town or city. The various land uses are linked to the bid rent theory. The zone of assimilation and zone of discard are together called the zone of transition. The Central Business District of Sydney, Australia. ... Bid rent curve Bid rent theory is a geographical economic theory that refers to how the price and demand on real estate changes as the distance towards the CBD increases. ...
In demography, the concentric zone model of a city was put forth by Robert E. Park, Ernest W. Burgess, and Roderick D. McKenzie in The City (1925). ... Proposed in 1939 by economist Homer Hoyt, the sector model also known as the Hoyt model in urban land use and demography modified the concentric zone model of city development. ... In demography, the multiple nuclei model is an ecological model put forth by Chauncy D. Harris and Edward L. Ullman in the 1945 article The Nature of Cities. ...
Further reading
Waugh, David Geography: An Integrated Approach 1995