What this covers
Place: United States
Time covered: Paper published in 2026
What this does not prove
The writer found problems when trying to repeat the work. Changing the units also changed the result. This does not prove that zoning has no cost.
Read the first US study and the later paper that questions it. Neither measures a loss for Canada.
Read the source
Housing Constraints and Spatial Misallocation: Comment ↗
Brian Greaney / AEJ Macroeconomics · 2026-04
Where to look: Abstract; DOI 10.1257/mac.20230141
Fixes and updates
No fact has changed in this version. If we fix a claim, we will add the date and explain the change here and in our list of fixes.