Canada

Seriously. Owning the logistics and distribution would do more, probably. And even then not for everything. You have to assume for anything manufactured the cost would get shifted around.

Frankly, the biggest difference I see around me is living in a place where the producers get direct access to customers AND where foot traffic is king. I've gone back and forth from rural to urban living spaces and here in the rural area I am now the big game changer is you walk up to a market and buy from fishmongers that bought fresh fish directly at auction and grocers that got a lot of the produce directly from the producer/farmer. And then there's enough people around in a small enough space that you can go to a supermarket for the packaged product and to a market/grocer for the fresh or specialty product.

The model where people drive to a shop and expect to find everything in the same place is a nightmare for pricing on both ends of things.