A model of the economics of these entities, to which a finite cutoff was added in a modification by Jan Brueckner, uses a price function with a negative derivative equal to “minus tau over q,” and is called the Alonso-Muth-Mills model. Joel Garreau pioneered a model in which the characteristic scale of these entities depends on “market potential,” which is named for the “edge” type of them. Models of these entities attempt to find their (*) “rent curve” in bid rent theory. Harris and Ulman proposed a polycentric model of these entities. A concentric zone structure for (10[1])these entities (10[2])is posited in the Burgess model, which assumes that there is a single CBD. For 10 points, name these places in which commerce happens at the centre and commuter housing typically exists at the outskirts. ■END■