Abstract NIMBY—or “Not in my Back Yard”—opposition against renters has long defined segregation and housing markets in the United States. Recent years, however, have seen the rise of a new phenomenon: YIMBY or “Yes in my Back Yard” efforts, which have aimed to expand affordable housing supply for renters in lower-poverty places that have long restricted it. The clash between NIMBY and YIMBY poses a problem: how do actors effectuate change in markets where they face difficulties mobilizing and bu
