You see? And here is some legal moves from the Government side are needed. Some tools/rules that would make a Landlord get INTERESTED in renting apartment for the lower price rather than keeping it empty could be implemented. I don’t know what these tools could be, I am not a lawyer. But I am sure the it could be found.
But there are no such tools/rules so far…

*********************
“You become responsible forever for what you have tamed”. Antoine de Saint-Exupéry