Main finding
Loosening reforms were followed by modest average supply gains, while tightening reforms reduced middle-income-affordable units and raised rents.
Loosening was associated with 0.8% more housing after 3–9 years
Stacy et al.
Main finding
Loosening was associated with 0.8% more housing after 3–9 years
Most important limitation
Reforms are heterogeneous and the cross-city design remains observational.
From the publication
The two groups track similarly before reform and separate gradually afterward.

How this study is used
Reference
Stacy et al. (2023). “Land-Use Reforms and Housing Costs.”