By overcharging, I mean that we compared prices to a baseline day in January (the 13th, to be exact) and then showed those prices against what was on offer from other retailers. Consumers do have access to this information and their buying decisions are their own. And that&#x27;s true, this study reinforces the free market system we have. There is something to be said for the shadiness of certain retailers elevating their prices on days that are being touted as &quot;sale&quot; days.