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London and Palen There are several approaches that attempt to explain the roots and the reasons behind the spread of gentrification. Palen & London (1984) compiled a list of five explanations: demographic-ecological, sociocultural, political-economical, community networks, and social movements. Demographic-ecological The first theory, demographic-ecological, attempts to explain gentrification through the analysis of demographics: population, social organization, environment, and technology. This theory frequently refers to the growing number of people between the ages of 25 and 35 in the 1970s, or the baby boomer generation. Because the number of people that sought housing increased, the demand for housing increased also. The supply could not keep up with the demand; therefore cities were “recycled“ to meet such demands. The baby boomers in pursuit of housing were very different, demographically, from their house-hunting predecessors. They married at an older age and had fewer children, and their children were born later. Women, both single and married, were entering the labor force at higher rates which led to an increase of dual wage-earner households. These households were typically composed of young, more affluent couples without children. Because these couples were child-free and were not concerned with the conditions of schools and playgrounds, they elected to live in the inner city in close proximity to their jobs. These more affluent people usually had white-collar, not blue-collar jobs. Since these white-collar workers wanted to live closer to work, a neighborhood with more white-collar jobs was more likely to be invaded; the relationship between administrative activity and invasion was positively correlated.[20] Sociocultural The second theory proposed by London and Palen is based on a sociocultural explanation of gentrification. This theory argues that values, sentiments, attitudes, ideas, beliefs, and choices should be used to explain and predict human behavior, not demographics, or “structural units of analysis“ (i.e., characteristics of populations). This analysis focuses on the changing attitudes, lifestyles, and values of the middle- and upper-middle-class of the 1970s. They were becoming more pro-urban than before, opting not to live in rural or even suburban areas anymore. These new pro-urban values were becoming more salient, and more and more people began moving into the cities. London and Palen refer to the first people to invade the cities as “urban pioneers“. These urban pioneers demonstrated that the inner-city was an “appropriate“ and “viable“ place to live, resulting in what is called “inner city chic“. The opposing side of this argument is that dominant, or recurring, American values determine where people decide to live, not the changing values previously cited. This means that people choose to live in a gentrified area to restore it, not to alter it, because restoration is a “new way to realize old values“.[20] Political-economic The third theoretical explanation of gentrification is political-economic and is divided into two approaches: traditional and Marxist. The traditional approach argues that economic and political factors have led to the invasion of the inner-city, hence the name political-economic. The changing political and legal climate of the 1950s and 1960s (new civil rights legislation, anti-discrimination laws in housing and employment, and desegregation) had an “unanticipated“ role in the gentrification of neighborhoods. A societal decrease in acceptance of prejudice led to more blacks moving to the suburbs and whites no longer rejected the idea of moving to the city. The decreasing availability of suburban land and inflation in suburban housing costs also inspired the invasion of the cities. The Marxist approach denies the notion that the political and economic influences on gentrification are invisible, but are intentional. This theory claims that “powerful interest groups follow a policy of neglect of the inner city until such time as they become aware that policy changes could yield tremendous profits“.[20] Once the inner city becomes a source of revenue, the powerless residents are displaced with little or no regard from the powerful. Community networks The community-network approach is the fourth proposed by London and Palen. This views the community as an “interactive social group“. Two perspectives are noted: community lost and community saved. The community lost perspective argues that the role of the neighborhood is becoming more limited due to technological advances in transportation and communication.
