How do increased or frequent evictions affect a neighborhood?

While most of the scholarship on eviction has focused on the effects of eviction on the tenants being evicted, the cycle of eviction also affects neighborhoods. To a degree, how neighborhoods are affected depends on the purpose of eviction.
The first type of eviction accompanies gentrification. In this case, as a neighborhood becomes popular or fashionable among the (usually white) upper classes, poorer tenants are evicted so that buildings can undergo extensive renovations and be rented out or sold as condominiums to wealthier occupants. In such cases, property prices rise dramatically, pricing out poorer inhabitants and often driving out the minorities or ethnic groups that were originally part of the neighborhood. Although some of the effects of gentrification, such as reduced crime and aesthetic improvement, are positive, gentrification also makes housing increasingly unaffordable in urban centers and drives out families who have lived in a certain region for generations.
A second type of eviction, and the one with which Matthew Desmond is most concerned, is based on tenants being unable to afford rent or rebelling against paying high rates for substandard housing. In these cases, eviction breaks the already fragile bonds of community in poor neighborhoods and contributes to a cycle of poverty, crime, and homelessness. The constant turnover in tenancy also perpetuates a vicious cycle of slumlords offering substandard housing which deteriorates as it is occupied by a constantly changing group of short-term residents. Because tenancy is seen as temporary, neither landlords nor occupants invest in the sort of improvements that occur in more stable housing areas.