You're making a lot of different claims here. You may be right about insurance etc, although the rent will be lower too... but I think there are much simpler ex

You're making a lot of different claims here. You may be right about insurance etc, although the rent will be lower too... but I think there are much simpler explanations for why some things are more expensive in the shops in poorer neighbourhoods. Staff are a big expense anywhere, and if they spend their time on $10 purchases instead of $100 purchases, then the margins have to be higher. That's basically why Costco is cheaper than 7/11. Isn't this just the same thing?