Most industries have become more productive over time. But not construction! We identify the causes — and possible solutions. (Can you say ... “prefab”?) RESOURCES:"The Strange and Awful Path of Productivity in the US Construction Sector," by Austan Goolsbee and Chad Syverson (BFI Working Paper, 2023)."Infrastructure Costs," by Leah Brooks and Zachary D. Liscow (American Economic Journal: Applied, 2023)."The Silicon Valley Elite Who Want to Build a City From Scratch," by Conor Dougherty and Erin Griffith (The New York Times, 2023)."A Decent Home," report by the President's Committee on Urban Housing (1968).EXTRAS:"Edward Glaeser Explains Why Some Cities Thrive While Others Fade Away," by People I (Mostly) Admire (2021)."Why Are Cities (Still) So Expensive?" by Freakonomics Radio (2020).