From the report you gave, the first paragraph under the heading "Primary Cause of Homelessness":

Widespread homelessness is the result of a severe shortage in affordable housing, a widening gap between rising housing costs and stagnant wages, and an insufficient safety net for individuals with disabling conditions. Though these drivers are structural and systemic, individuals often have one or multiple major events or factors that precipitate their homelessness. An inability to secure adequate housing can lead to an inability to address other basic needs, such as health care and adequate nutrition.