In my city, I noticed that some shops in some streets keep changing hands over the years, and some are stable even if they don't look like they get a lot of traffic. I never investigated this or looked deeper into it, but I have a hunch that it also has to do with "fluid dynamics" in some sort of way. Meaning that the shop is located in a "low pressure" zone of foot traffic where people are either moving fast, distracted, or pushed away by some kind of obstacle. Or, the shop is somewhat less visible than the surrounding ones. This leads the shop to not getting many visitors, and eventually closing. I wonder if there's been any research behind this.