It's simpler than it sounds. "Rent affordability" is rent as a % of income. Going above 22% is associated with an increase in homelessness. Going above 32% is a

It's simpler than it sounds. "Rent affordability" is rent as a % of income. Going above 22% is associated with an increase in homelessness. Going above 32% is associated with a change in the rate of increase in homelessness (ie, not only does it rise, it goes up faster than it does from 22%-31%). Here's a graph: https://wp.zillowstatic.com/3/inflection-72aee4-1024x1024.png https://wp.zillowstatic.com/3/inflection-72aee4-1024x1024.pn...