Community Archive

🧵 View Thread

🧵 Thread (22 tweets)

Placeholder
Emmett Shear@eshear• over 2 years ago

EXPLAIN HOW PRICES ARE IMPACTED BY BUILDING MORE HOUSING TO ME OR I'LL FUCKING EVICT YOU! DON'T DUMB IT DOWN INTO SOME VAGUE SHIT! EXPLAIN HOUSING PRICES TO ME RIGHT NOW OR I'LL LITERALLY FUCKING EVICT YOU! DO THEY GO UP OR DOWN WITH MORE HOUSING??? Bro chill out I got you:

915 98
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

On the one hand, building housing seems to prevent prices from going up. On the other hand, building housing increases density, and density is highly correlated with cost (big cities expensive! manhattan v expensive!) https://t.co/0CWAa61PAg

Tweet image 1
Tweet image 2
187 13
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

This is a little strange, if you think about it, hence our friend's confusion and demands. Building more housing keeps prices down, but increases density which drives prices up? Which is it???

121 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

Let’s take a step back. What determines the price of housing? The same thing that determines the price anything else: supply and demand. https://t.co/ZO5TvLHvkz

Tweet image 1
117 4
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

But housing is not a singular commodity. People have very strong preferences about whether they’d like to live in high-rise apartments in a city or single family homes in the suburbs or splendid isolation in the country.

102 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

(Of course its great to live in a single family home with plenty of space in a dense city, but this will always be rare for the obvious reason that if everyone gets it, you don’t have a city anymore)

127 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

The fact that housing in high density is significantly more expensive per sq ft than housing in low density tells us something important: there is much higher demand for high-density housing, relative to supply, than there is for low-density housing, relative to supply.

169 7
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

This kind of makes sense, since by default we live in superabundance of very low density for the entirety of history. Building up density takes time, labor, and capital. Low/medium density just takes land, which we collectively have plenty of. For context, SF is ~7,000 ppl/km^2. https://t.co/yusYzG9HCW

Tweet image 1
99 2
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

The high prices for higher densities imply that there is massive pent up demand for the benefits of high density living. People are willing to pay a premium for it. Imagine how many people would move to SF or NYC if they were a lot cheaper!

144 5
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

OK, so we’ve chronically under built high density housing overall vs supply. Which is why it’s so expensive, because lots of people want to live in those places vs. how much exists so it gets bid up. So far, so duh.

97 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

Why does building a lot of housing appear to suppress housing prices, for places like Las Vegas and Raleigh? Because the housing market takes a long long time to equilibrate. Moving cities is expensive and slow. Once people are settled somewhere, they usually don’t move.

109 2
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

Because it takes many years, sometimes decades, for people to decide to move, housing prices today are the result primarily of attractiveness + density ten years ago as much as they are the result of anything today.

111 3
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

So this is the answer to the tension between those two graphs. Building housing reduces prices in the short run, because it increases local supply of housing, moving us down the supply curve.

86 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

But this increases density. And because we are chronically undersupplied with cheaper high density housing at a national level, it makes moving to your city much more attractive. Immigrants arrive, driving prices back up.

88 3
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

If housing were an ordinary commodity, and you stopped building housing at this point, the result would be a return to equilibrium at the same price point. You’d have say 50% more residents in town, but also 50% more housing, and the price would be the same. https://t.co/x1RbgiJxt8

Tweet image 1
60 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

But housing is not a normal commodity. If you stop building housing at this new higher density, what happens is NOT a return to prior prices. Instead the new more dense city is more attractive at a national level, and prices begin to climb until they’re higher than before.

93 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

There are only two proven ways out of this situation, if you want to reduce the price of housing in your city. The first is the way of Vegas: Just Keep Building. The second is the way of Detroit: if you get rid of enough jobs, people will have to leave.

164 6
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

San Francisco is trying a novel approach, where we try to destroy the quality of life in the city while keeping everyone grinding at their jobs. So far so good on destroying quality of life, but empirically prices just aren’t going down.

235 11
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

I think SF is just too fundamentally beautiful for this approach to work, tbh. And the economic powerhouse that is infotech doesn't seem to be slowing down. https://t.co/cpfRoJ0LDe

Tweet image 1
113 1
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

There is nothing intrinsically expensive about high density regions, or low density regions. We just chronically underbuild high density by making it illegal to construct more. Until we construct a huge amount more housing in our biggest metro areas, prices will remain high.

171 9
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

The same thing happens in very desirable low density regions when supply is constrained. You get sky high prices in Aspen, CO too, which is incredibly expensive vs its density. It's just we write those off as enclaves for the rich, instead of cities everyone needs to live in.

137 5
5/4/2023
Placeholder
Emmett Shear@eshear• over 2 years ago
Replying to @eshear

This whole situation seems so natural to us that it's hard to imagine it being any other way. But it is just an artifact of having lots and lots and lots of land that is mostly empty as the start point.

150 1
5/4/2023