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Posts by Mike Fellman

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Fixing Housing Means Fixing Finance: Why We Can’t Deregulate Our Way to Affordability - Groundwork Collaborative

Hot take: The housing crisis is a finance crisis.

Developers don't just need permission to build—they need the math to work. Right now, it only works when rents keep rising.

Our @jwmason.bsky.social & @mikefellman.bsky.social’s new report explores how we can make stable, lower-rent housing viable.

3 weeks ago 25 9 0 8
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Fixing Housing Means Fixing Finance: Why We Can’t Deregulate Our Way to Affordability - Groundwork Collaborative

I'm very excited that my report on housing affordability for @groundwork.bsky.social, coauthored with @mikefellman.bsky.social, is finally out. Today is a full teaching today for me, but I will try to put a post up about it tomorrow.

groundworkcollaborative.org/work/fixing-...

3 weeks ago 58 20 3 4

How can a Danish pension fund even invest in US Treasuries when it's liabilities are in DKK???

2 months ago 0 0 0 0

The Fed bullies the bond market all the time, they just won't for the benefit of Trump.

2 months ago 0 0 0 0

Denmark or any country's investment in US Treasuries is actually largely irrelevant.

Annexing Greenland would still be an outrage.

3 months ago 0 0 0 0

M4A works by cramming down on providers. So doctors just move to another state under state level single payor.

That said, if the entire country went on M4A, providers would face a ~20 percent pay cut but would have nowhere to go since US docs would still be the highest paid in the world.

3 months ago 1 0 0 0
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The Convex Housing Supply Curve and Its Causes In one of my first posts, I explained what supply and demand really mean in economics. The supply and demand curves are functions which map quantities to prices, not quantities themselves.

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0
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Vienna's Social Housing Model Holds Promise and Perils Vienna was perhaps best known as the seat of the power of the Habsburg Empire, but in modern times it is better known as a large city with an extensive stock of public or government subsidized housing...

Vienna's Housing Model Holds Promise and Perils

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0
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Are VA Home Loans a Good Deal? Mostly yes, with some caveats

Veteran's Day Post

Are VA Home Loans a Good Deal?

Mostly yes, with some caveats

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0
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Explainer: Home Prices and Baumol's Cost Disease You’ll notice a funny thing when you look at a list of states by median home price.

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0
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The Rise of Data Centers Could Paradoxically Lower Electricity Rates But also present risks for existing rate-payers

By popular demand, my first foray into non-real estate topics.

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0
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Diseconomies of Scale Plague Dense Housing And make it tough for density to address affordability

Housing production suffers from diseconomies of scale, which helps explains high housing cost.

open.substack.com/pub/precon/p...

5 months ago 2 0 0 0
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Zoning Probably Makes Housing Cheaper, And That's a Problem. By inefficiently allocating housing across space, it reduces the value of the housing stock.

New Housing Hell

open.substack.com/pub/precon/p...

5 months ago 1 0 0 0

I support proposals 2-4 on the NYC ballot, which would make it moderately easier adjust zoning for higher-density housing development. I have to say, seeing how controversial this is among people I know is giving me some new sympathy for the angry YIMBYs online.

5 months ago 100 18 5 6
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Tokyo is not a YIMBY Dreamland It's just a deflated bubble

New Housing Hell

Tokyo is not a YIMBY dreamland, it's a deflated asset bubble.

open.substack.com/pub/precon/p...

5 months ago 0 0 0 0
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Evaluating the Impact of Fees, Property Taxes, and Construction Delays in California and Texas The much anticipated Rand Corporation report comparing multifamily housing in Texas and California came out in April 2025.

New Housing Hell

I analyze the impacts of the Texas and California real estate tax regimes on housing production.

Spoiler alert:

Cali comes out better than critics would expect.

open.substack.com/pub/precon/p...

5 months ago 0 0 0 0
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Vacancy Rates are a Silly Way to Estimate Housing Shortages Housing costs have been incredibly salient in the zeitgeist since 2021.

New Housing Hell

Vacancy rates a housing shortage do not make.

open.substack.com/pub/precon/p...

5 months ago 0 0 0 0
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Stop Comparing Argentina's Rent Control to Rent Stabilization in the United States Argentina’s President Javier Milei is a libertarian darling who abolished rent control by decree in late 2023 upon taking office.

New Housing Hell

Stop comparing rent control in Argentina to US Rent Stabilization

open.substack.com/pub/precon/p...

6 months ago 1 0 0 0
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Developers and Landlords Interests Largely Align Rising rents are needed for private multifamily development to deliver required rates of return and secure financing.

New Housing Hell

Developers are not the enemy of landlords. Landlords are their customers

open.substack.com/pub/precon/p...

6 months ago 0 1 0 0
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San Francisco, YIMBY Success Story?!?!? Not exactly, but land use rules did not prevent a solid building cycle which flattened rents.

New Housing Hell

open.substack.com/pub/precon/p...

6 months ago 0 0 0 0
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She already said she would only serve one term. That's already disqualifying and forces Ds to potentially have to defend an open seat in 2032 years.

6 months ago 9 0 0 0
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SB 79 is Law. Don't Expect Much Building SB 79 is now law, having been signed by Governor Newsom.

New article.

SB 79 brings some welcome changes, but don't expect a building boom.

open.substack.com/pub/precon/p...

6 months ago 0 0 0 0
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Wall Street did not cause home prices to surge. But the Internet still gets it wrong. Every few weeks, a viral tweet blaming institutional investors incenses YIMBYs.

New Substack

Wall Street didn't cause the housing crisis, but YIMBYs still get the economics wrong (per usual)

open.substack.com/pub/precon/p...

6 months ago 4 0 0 0
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The Quantity of Buildable Land doe not Determine its Price. People in the YIMBY movement have at times asserted that upzoning magically reduces land prices, or at least the price of apartment-zoned land.

New substack

No matter what some YIMBYs say, the quantity of buildable land does not determine its price.

open.substack.com/pub/precon/p...

6 months ago 0 1 0 0

But in order for it to be speculation, land prices have to be detached from rents!

The simple and straightforward answer is that it is not speculation. Land prices are rising because the rent that the land can generate is rising. It's not that deep.

6 months ago 1 0 0 0

But this is an inherent contradiction, since for some on the left, land "speculation " is driving rents higher

6 months ago 1 0 1 0

In other words, land prices detach fully or partially from the returns(rents) that land generates. Land prices are higher than what rents would justify.

6 months ago 1 0 1 0
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We could define "speculative" demand as any price above which land provides a return which is BELOW a return (adjusting for risk) that equals returns in other asset classes.

6 months ago 1 0 1 0

Suppose land prices are anchored by the same zero arbitrage equilibrium condition that anchors all asset prices.

Here, land must be priced such that it does not provide a higher risk adjusted return than other asset classes

6 months ago 1 0 1 0

JW and I have a paper on housing coming out soon, and we agree on this.

I've thought about how land speculation would drive up rents, and I just don't see it.

Quick thread

6 months ago 6 1 2 0