Shopping Mall
Thinking about that shopping mall, there are two states.
Firstly, the owner of the mall can do some things to make money… charge more for prime locations, advertise its location, etc. This seems OK. They are in shop lease business.
Secondly, the owner of the mall could see what shops do well, then decide to get into that action too. They are now in competition with their leases. That does not seem OK. They could do things like increase rates for their competitors stores, or not charge themselves the same rates as those stores. This seems even less OK.
The problem is when to discourage or stop the second thing happening. I’m sure there are those who will say the second thing is perfectly acceptable because capitalism.