Curious, how would this affect the production of things that have long supply chains, or require lots of manual labor? There are many things that require labor, like plumbing, irrigation, farming, transportation, brick firing, steel production, etc. where the product is either an intermediary step, or otherwise contributes to something that the worker doesn't themself benefit from. Who would create my car, computer, desk, house, etc. if people are only working for themselves? Maybe I misunderstood your comment
The cost of these things would simply rise until people are willing to either produce them, or obviate the need for that production (such as by increasing automation in that particular sector).
I feel like a lot of people have the impression of a UBI that it would mean no one would have paid jobs anymore. It's primary advantage is that it removes the perverse incentive of the existing needs-based assistance system to not work (or not work more) because if you do you lose your benefits. Which doesn't exist if the payment is unconditional rather than conditional on not making [more] money.
But the amount would be something in the nature of $12,000/year. Is that actually a disincentive to work that would cause no one to take a paid job anymore? Only if no one wants a lifestyle that costs more than $12,000/year.
