[wahnfrieden]

In some neighborhoods there are only luxury grocery options.

Groceries also form cartels as the other commenter mentioned. The biggest grocers in Canada did it for many years until they were penalized for it (though it’s likely still continuing in other ways - the same players are now under investigation for selling underweight meats)

The estimated cost to consumers from bread price-fixing was $4-5 billion

[halflife]

It’s about supply and demand. Luxury grocers provide a shopping “experience”, where low cost grocers do not. In a luxury neighborhood it would make sense the shoppers are looking for experience more so than low cost.

[rsynnott]

What’s a ‘luxury neighborhood’? In any large city, most central areas are generally a bit of a mix; “this is only for rich/poor people” is more of a suburban phenomenon. If the shops are only catering to the high end, a problem can develop.

(I am less sure why this happens to such a great extent in large US cities vs elsewhere, vs more of a balance of shops, but it does seem to.)

[wahnfrieden]

The poster appears to be Israeli. I’m not an expert and have never been but I understand spatial wealth segregation is quite extreme there and may explain their take. Here’s one study: https://www.ref-inst.org/en/articles-and-studies/spatial-ine...

So it may just be that where they are from, the concept of “luxury neighborhoods” which do not need to cater to the poor and disadvantaged populations does indeed exist, due to segregation factors

[wahnfrieden]

The neighborhoods I'm talking about also have many people living in poverty or near it. Looks like you live in Israel which is perhaps less integrated / more segregated than Brooklyn (I don't know though, I haven't been to see first hand)