> Local ordinances that limit rent increases for some rental housing units, such as in New York and San Francisco, have had a positive impact over the past three decades on the amount and quality of broadly affordable rental housing in cities that have used them. [0]
The negative effects of price controls, especially when it comes to rents is the most unifying issue in economics. Rent control isn't a new idea, but there is agreement that it's a bad idea. It's not the landlords who say this, its the people who study this stuff. Paul Krugman wrote about this in 2000 [1].
Putting in arbitrary controls on prices to fight cost increases is about as effective as putting arbitrary controls on thermometers to fight global warming.
[0] http://www.igmchicago.org/surveys/rent-control
[1] https://www.nytimes.com/2000/06/07/opinion/reckonings-a-rent...