According to the concentric zone model, the following event takes place: A. People first migrate to the center of a city and then migrate outward.
The concentric zone model is also referred to as the Burgess model and it can be defined as a type of model that is typically used by sociologists to explain migration and urban social structures. Also, the concentric zone model was developed in 1925 by Ernest Burgess.
Ernest Burgess posited that states and cities tend to usually grow in concentric rings around their central area (core) with respect the socio-economic status of households before they start migrating out.
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