Right. Specifically: 1. Maybe lower prices lead to lower ratings 2. Maybe lower ratings lead to lower prices 3. Maybe low quality leads to both low ratings and

Right. Specifically: 1. Maybe lower prices lead to lower ratings 2. Maybe lower ratings lead to lower prices 3. Maybe low quality leads to both low ratings and low prices The article seems to say that #1 is the answer. Although I grant you that if you tell me Widget 1 costs $5 and Widget 2 costs $50, I'd assume that there's a reason for that. And maybe I'd be wrong.