Here ya go (I knew I had seen it somewhere so I'm glad I managed to find it again). Here are some links to assorted sources about brands etc. It makes for fascinating reading imo
That first list is interesting because I recognize most of them as terrible products.
My mental model of brands was as a quality stamp, as in people would recognize a product from advertising but if they disliked the product then it wouldn’t help. But, I think there is a second effect in play. If you start with something of high quality that people consume regularly you can very slowly lower the quality without people noticing. Continue long enough and old brands are going to end up as lower quality.
"These 10 Companies Own Almost All of the Brands You Use" https://thehomestead.guru/10-companies-own-brands/
https://gizmodo.com/fascinating-graphic-shows-who-owns-all-t...
https://www.dividend.com/how-to-invest/9-companies-that-own-...
https://capitaloneshopping.com/blog/11-companies-that-own-ev...
https://www.webfx.com/blog/internet/the-6-companies-that-own...
https://www.forbes.com/sites/brendancoffey/2011/10/26/the-fo...