UBI is implemented tomorrow. Every citizen gets $1000 per month.
Landlord now knows you have an extra $1000 that you never had before. Why wouldn’t the landlord raise prices?
Now you have an extra $1000 a month and instead of eating rice and beans for a few meals you go out to a restaurant. The restaurant owners know everyone is eating out more so why not raise prices and maximize shareholder profit as always. The restaurant/corporation is on TV saying, “well, demand increased and it is a simple Economic principle that prices had to increase. There’s nothing we can do about it”.
Your state/country has toll roads. The state needs money for its deficit. UBI is implemented and the state/country sees it as the perfect time to incrementally raise toll prices.
Next thing you know UBI is effectively gone because everything costs more and billionaires keep hitting higher and higher all time net worth records.
Game theory, it’s in the interest of every landlord if prices go up a little, so the overwhelming majority will raise rent.
Fact is only so much stuff is made and only so much space exists and only so many people exist to make and build etc. Money is just an abstraction for allocating those resources. Broadly speaking the market would adjust and everything would remain the same for 95% of people. The HOPE of UBI advocates is that, after adjustments to prices, the UBI would have an impact on that last 5%.
Until one landlord defects to improve their occupancy rate.
The thing about real estate though, is that supply is inelastic. Your one landlord cannot just turn up production and pump out a million widgets of housing. They’ll sell out, fast. And you’re back to square one.
All the sophisticated (institutional) landlords modeled and realized that with higher prices and lower occupancy rates they still make more money, and they all use ONE company to set their price on each unit.