There's a lot to unpack here, so I hope you don't mind a long and nuanced reply.
UBI on its own is obviously inflationary, like any other government spending. But it can be combined with taxes to reduce the growth in the money supply, as necessary to keep prices stable. Those taxes will tend to be aimed at the wealthy, and will take more than $5k/month away from them, so people bidding for a $300k home might have less purchasing power, not more.
But also, AGI-fueled unemployment is likely very deflationary, and that is the premise of this conversation. Let's talk about your landlord's situation. Sure, your tenant is now getting $5k/month UBI, but they've also lost their job, and so has most of the population. There might not actually be more juice to squeeze out of that lemon than there used to be. Plus, workers won't be bidding up rents in (formerly) high-wage cities for jobs that don't exist anymore. Your unemployed tenant is only staying in town because they like the weather. They could move elsewhere if you charge too much rent; it won't affect their commute.
The effect on prices will really vary a lot by type of good. For things that get effectively automated by AGI (let's say, for example... legal services and architectural drawings), the price may drop precipitously due to increased productivity. For other things (plumbing), the price would go up a lot. It would become quite rewarding to be a plumber.
Lastly, depending on the types of goods demanded, prices can be quite stable. If you give everyone $1k and they use it to buy an iPhone, the price of iPhones might not even go up that much, because it gets cheaper to produce in large quantity. In fact, they may even get cheaper. However, if you give one person $100M and they use it to buy a yacht, you don't get the same efficiency benefits from economies of scale. A more even wealth distribution favors mass production of goods, which keeps prices low.
We don't end up back at square one because:
1) The goal of UBI isn't to make everyone $5k richer, but to shrink the gap between rich and poor in a world where a few people are very rich from owning capital and many are poor due to a decrease in demand for labor.
2) We don't end up back at square one because at the end of the day, an unemployed person getting $5k/month has more purchasing power than if they got $0/month, even if prices do increase.
3) But aggregate prices don't even necessarily have to increase, because of changes to taxes and productivity, and also because of economies of scale.
UBI on its own is obviously inflationary, like any other government spending. But it can be combined with taxes to reduce the growth in the money supply, as necessary to keep prices stable. Those taxes will tend to be aimed at the wealthy, and will take more than $5k/month away from them, so people bidding for a $300k home might have less purchasing power, not more.
But also, AGI-fueled unemployment is likely very deflationary, and that is the premise of this conversation. Let's talk about your landlord's situation. Sure, your tenant is now getting $5k/month UBI, but they've also lost their job, and so has most of the population. There might not actually be more juice to squeeze out of that lemon than there used to be. Plus, workers won't be bidding up rents in (formerly) high-wage cities for jobs that don't exist anymore. Your unemployed tenant is only staying in town because they like the weather. They could move elsewhere if you charge too much rent; it won't affect their commute.
The effect on prices will really vary a lot by type of good. For things that get effectively automated by AGI (let's say, for example... legal services and architectural drawings), the price may drop precipitously due to increased productivity. For other things (plumbing), the price would go up a lot. It would become quite rewarding to be a plumber.
Lastly, depending on the types of goods demanded, prices can be quite stable. If you give everyone $1k and they use it to buy an iPhone, the price of iPhones might not even go up that much, because it gets cheaper to produce in large quantity. In fact, they may even get cheaper. However, if you give one person $100M and they use it to buy a yacht, you don't get the same efficiency benefits from economies of scale. A more even wealth distribution favors mass production of goods, which keeps prices low.
We don't end up back at square one because:
1) The goal of UBI isn't to make everyone $5k richer, but to shrink the gap between rich and poor in a world where a few people are very rich from owning capital and many are poor due to a decrease in demand for labor.
2) We don't end up back at square one because at the end of the day, an unemployed person getting $5k/month has more purchasing power than if they got $0/month, even if prices do increase.
3) But aggregate prices don't even necessarily have to increase, because of changes to taxes and productivity, and also because of economies of scale.