Summary of Chapter 15

In Chapter 15, the author talked about the “slum operates as vicious circles” She used the examples to talk about a perpetual slum is that too many people move out of a place too fast. She also said about the cause of the slum dweller and poor immigrants. She explained the slum formation would bring the crowdedness, and it is the reason people with the only choice to move into an unpopular area. Once the slum formed, the pattern of the emigration would make the successful people to move out. Furthermore, the author also talked about the unsluming and its accompanying self-diversification, which is the population, is reflected in diversification of commercial and cultural way.