Does gentrification driven by rising top incomes reduce poorer residents' welfare?
Core argument: Urban spatial sorting widened the welfare gap between the 90th and 10th income percentiles by 2.3 percentage points from 1990 to 2013, a period when the income gap between those percentiles grew by 18 percentage points.
Rising incomes among the wealthy have significantly contributed to urban gentrification, leading to increased housing prices in downtown areas. This spatial sorting has resulted in a 2.3 percentage point increase in welfare differences between the 90th and 10th income percentiles from 1990 to 2013. The income gap between these percentiles grew by 18 percentage points during this period. Poorer residents, particularly those at the 10th percentile, experienced a 2.5% reduction in well-being due to higher rents and less valued amenities. Meanwhile, the welfare of wealthier households remained largely unchanged, as increased amenities offset the impact of rising house prices. This dynamic underscores the understated welfare impacts of income inequality when spatial sorting is overlooked, highlighting the need for targeted policy interventions to address these disparities.





