'Supply-Side' Arguments, and Why Geography, Scale, and Migration Matter

When it comes to housing, supply and demand isn’t as simple as it seems (or as simple as some boosters would like us to think), and a supply-side strategy will not work in every context to address affordability, including in hot neighborhoods.

1 minute read

April 2, 2016, 5:00 AM PDT

By Keli_NHI


Rick Jacobus's article, "Why We Must Build," published by Shelterforce a couple of weeks ago, has created quite a buzz. Jacobus is smart, and has been writing on the topic of affordable housing and land trusts for a while. The supply-siders have wishfully interpreted the piece as unquestionably supporting their "build, baby, build" agenda, with BeyondChron going so far as to share the piece, saying: "Why building housing reduces displacement." That isn't the simplistic argument Jacobus's article makes—even if he positions himself as a bit of a market rationalist, he clearly didn’t write this long and thoughtful piece to simply be a booster for market-rate development, and his article shouldn't be interpreted as such. A few parts of his article make this clear and deserve further attention, while others are troubling and in need of correction.

Friday, April 1, 2016 in Shelterforce/Rooflines

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 18, 2025 - Diana Ionescu

Two people walking away from camera through pedestrian plaza in street in Richmond, Virginia with purple and white city bus moving in background.

Vehicle-related Deaths Drop 29% in Richmond, VA

The seventh year of the city's Vision Zero strategy also cut the number of people killed in alcohol-related crashes by half.

June 17, 2025 - WRIC

Two small wooden one-story homes in Florida with floodwaters at their doors.

As Trump Phases Out FEMA, Is It Time to Flee the Floodplains?

With less federal funding available for disaster relief efforts, the need to relocate at-risk communities is more urgent than ever.

June 16, 2025 - Governing

Close-up of green and white sign for 1 hour EV charging station outdoors with tall palm trees in background against blue sky.

Judge Reverses Federal Funding Freeze for EV Infrastructure

A federal judge ordered the Trump administration to release funding for the National Electric Vehicle Infrastructure Program, a $5 billion program aimed at improving charging infrastructure.

5 hours ago - News From the States

Wide street in Santa Monica, California with cars parked on either side and tall palm trees lining the street on a sunny day.

Santa Monica May Raise Parking Permit Fees

The city says the changes would help better manage curb space and support its sustainability goals.

6 hours ago - Westside Current

Brick building with high-rise under construction with yellow crane in background in downtown Portland, Oregon.

Portland Housing Bond Created Nearly 5,000 Units, But Affordability Remains Out of Reach

Despite better-than-expected results from multiple local housing bonds, housing costs and homelessness remain top of mind for many Oregonians.

7 hours ago - Governing

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.