This week, the NYU Furman Center of Real Estate and Urban Policy released a new report as part of the Center’s ongoing work examining gentrification. The report, titled “Gentrification Responses: A Survey of Strategies to Maintain Neighborhood Economic Diversity,” details the measures that 11 major metropolitan areas in the United States have sought to mitigate the loss of their affordable housing.

According to an earlier report, the total number of renters has gone up in each of the 11 metro areas between 2006 and 2014. In New York, the number of renters rose dramatically, by around 900,000 people.

But it is evident that the supply is not meeting this increase in demand. In New York, though tenant numbers swelled by 14 percent during the study period, the availability of rental housing only went up by 11 percent.