This works if landlords don't have significantly more units than are demanded by the population AND it is both very expensive for new units to be built and new competitors to enter the market. If enough supply comes on the market and the best move for the landlord with the additional supply would be to lower prices. Tenants then all move into the better value units and the expensive landlord is left with either empty buildings or is forced to lower his price.
Wouldn't that require a large flooding of units not attached to those landlords? And considering they already cornered the market on the "old" units, unless this market disrupting supply of units is owned by someone generous, they'll just match the old prices and call it a win.
usually prices dont go down. the cost does relative to inflation. what usually happens is a new investor will do the analysis and build new units that are even more expensive but only slightly. now all the current tenants that can afford it will leave the current landlords and the current landlords wont be able to increase prices because there is a better product at that price level.
It does depend on where you are and how elastic supply is. In Austin for example there has been a recent decrease in rent (even relative to inflation) despite continually growing demand.
austin had such an insane explosion of supply. but they also have a price explosion just a couple years ago. probably going to see something similar with respect to GPU rentals in a couple years