While talking about the changes that Union Square has experienced since its first opening, Zukin mentions the authenticity of the place, and states that it “is a cultural form of power over space that puts pressure on the city’s old working class and lower middle class, who can no longer afford to live or work there”. This means that as the culture of the place changes with upper class people and big businesses moving in, the power shifts between groups of people which forces lower and middle class families out.
In an interview with Sharon Zukin, she explains that the word “authenticity” is used in the book to talk about the changes in New York, to explain how changes in the city are both acceptable and nonacceptable. To become accepting to new people that come to the city but at the same time defend the right of longtime residents to stay in place against forces of eviction and new comers. She used the word “authenticity” in a way to include both the origins of the city and new beginnings that come with new people.