"McKinnish and her colleagues found that gentrification created neighborhoods that were attractive to minority households, particularly households with children or elderly homeowners. They found no evidence of displacement or harm. While most of the income gains in these neighborhoods went to white college graduates under the age of 40 (the archetypical gentrifiers), black high school graduates also saw their incomes rise. They also were more likely to stay put. In short, black households with high school degrees seemed to benefit from gentrification."
And while people, including myself before reading the article, think of gentrification as a widespread phenomenon that is happening all over the US, it's actually only happening in three cities: New York, Chicago, and Washington.