Basically when somebody makes a pricing error on a decentralized cryptocurrency exchange there's a mob of automated arbitrage bots that try to trade against it. Who wins and actually gets to make the trade is mainly determined by how high of a transaction fee your bot is willing to pay.
You can win instantly by offering to trade with a transaction fee so high it almost wipes out all but a cent or two of the entire arbitrage profits, because nobody else will pay a higher fee.
Instead what happens is bots offer the lowest possible fee, then immediately increase their fee as soon as they see a competing bot try to take the trade with a higher fee. This results in the bot offering the highest fee changing every several milliseconds as the fee quickly grows.
The way Ethereum mining works, this results in the winning bot being randomly selected from among the set of bots "bidding" up the transaction fee: blocks are mined at random intervals of iirc about 20 seconds, and whoever had the highest bid at the time the next block is mined wins. <20 seconds of bidding is short enough that even with the bidding, the transaction fee doesn't get bid up particularly high, and the winner makes out with a highly profitable arbitrage trade.
By giving up a guaranteed win and instead rolling the dice against other bots, transaction fees stay low and everyone has a higher expected profit. It's coordination that happens without any communication between the participants and quite possibly the participants didn't realize they were in effect cooperating when they added the high speed bidding behavior to their bots.
This is like 1980s sawtooth algos in real finance.
A lot of crypto is former HF folks taking old strategies to a dumber field.
I don’t think this is really true. It’s naively true if you just look at the number of homeless people vs the number of empty units, but misses:
1. That markets need some portion of empty units for fluidity.
2. That many people aren’t homeless, but living in situations where they would take more housing if it was available. (Living with roommates, ex-partners, family, etc.)
3. Many places simply don’t have enough housing for everyone who wants to live there. If they did, people would move from other places.
Of course, that also shows the problem: it haircuts pensions as well, since they are a large part of the rent seeking class.
Naively, if I knew everyone’s salaries were about to double, I’d hope to be holding a fair amount of real estate going into that doubling.
But mainly it is that you would need to remove or decrease benefits for those who do not work in order to have room for higher salaries. That is not a problem for the unemployed because higher salaries means that the only people without work are those who do not want to work. But it is a big problem for those who do not want to work and for example would like to live off their real estate.
The gut reaction to higher salaries is that people would have more money to purchase real estate or pay rent, but I think the downwards effects for real estate are much stronger. And the evidence is that in every country which has seen a period of high salaries for workers, real estate has been cheap during that period for workers to buy.
Real question. Do we have evidence of this from anything except developing economies pulling countries out of poverty? Like a first world country sort of thing. Because to me it seems like higher salaries comes first, and the property would lag for a bit while the market reaches its new level. Does that make sense?
The only answer is to build more housing and have a high property tax in unoccupied housing.
You could build as much more housing as you want, but if those houses only become accessible to purchase for those who already own real estate instead of for those who work, then nothing will change.
Yes. That’s a problem.
If the only market forces are landlords keeping half of their units empty so they can keep $1400 units priced at $2400 because that’s what the software (and indeed service) are pushing them to do, that’s price fixing.
There’s extra steps, it’s a new form, but the price is fixed, and the point of allowing housing to be built isn’t being fulfilled.
Not everything is "Economics 101."
No, the IRS doesn't allow tax deductions for the "missing $2400 rents" of unrented units. IRS only allows deducting ongoing expenses such as "maintenance, insurance, taxes, and interest," :
Landlords have an inherent trade off between holding out for a tenant who would pay a higher rent and not having the unit vacant in the meantime. Holding out for longer than that helps the other landlords at your expense. Meanwhile there are a large number of landlords, there is no way for the ones using a given system to force the others to do the same, and a significant percentage of them don't.
So if the system tells the landlords using it to do the thing that would increase rents if every landlord was using it, the "defectors" who don't use the system win out over anyone using it, which means using the system rather than defecting would cause you to lose money and everyone would have the incentive to defect.
Whereas if all the system is doing is suggesting the optimal point in the trade off between holding out for a higher paying tenant and renting the unit sooner, without assuming the other landlords are being required to use the same system, that's the same thing an individual landlord would do if they're not colluding.
The actual way landlords collude is through zoning boards, because then they have an enforcement mechanism, i.e. if someone is trying to defect by adding new units to alleviate the limited supply then the other landlords can sic the government on them, having passed the various laws against constructing those units there.
This is precisely what happened. Quoting from my comment at the time (https://news.ycombinator.com/item?id=39579488) --
Subscribing to a pricing data service: legal.
Using data feed to guide pricing and set initial figures: legal.
Agreeing, either implicitly or explicitly, to let the pricing data feed set the price floor: collusion.
Leaving units unsold and refusing to lower the price despite insufficient demand: usually a bad business decision, possibly indicator of a market failure.
Leaving units unsold to maintain agreed-upon price floor despite insufficient demand: collusion, market manipulation. Congratulations, you are a cartel.
Almost always.
The trick is figuring out where the failure is coming from, and whether your society can find a lever to pull to fix it.