[judge2020]

But Costco does sell Vodka and wouldn't have made that product if Vodka sold 10% of what it actually sells. Because Amazon sells literally everything, is it a crime to do what Costco does, just on a bigger scale?

The only end-goal that would actually solve the problem fairly is if companies couldn't sell first-party products (or products from a partner where they have a vested interest in) in their store. If you just take care of the one company, you end up with other companies doing the same thing in 20 years like how iOS still has a default music player when MS got burnt for that with having a default browser.

[fredophile]

I feel like people in this thread are being deliberately obtuse. The issue isn't about selling vodka. It isn't about selling store brand alternatives to brand name products. The issue is where Amazon is getting their data from when decided what products to sell and what store brand products to make.

When Costco decides to make a store brand alternative they are using sales data for things they have sold in their store. Amazon is using data for things other people have sold. Amazon is not doing what Costco does.

[cycomanic]

This is not about making a home brand. Amazon can literally look at the sells data of e.g. some seller which sells Nike Air Jordans (as a stupid example) and go and source those themselves and offer them (the exact same brand) cheaper than the seller, because they have all the sales data. Now how would Cosco do this?

[judge2020]

Costco also looks at sales data for competing products (within Costco) and chooses to make house brands of those products.

It's not like Amazon sees sales data from someone's shopify site if people choose to sell on both brand.com and amazon.com.