Some of the finding from this survey:
Most American consumers don't realise Internet merchants and even traditional retailers sometimes charge different prices to different customers for the same products, according to a new survey.
First-time buyers at a retailer could see higher prices than a firm's repeat customers, and retailers may not offer discounts to consumers who buy the same brands regularly without even looking at alternative products on the same site.
The Internet empowers careful shoppers to conveniently compare prices and features across thousands of stores. But it also enables businesses to quietly collect detailed records about a customer's behavior and preferences and set prices accordingly. Changing prices is generally lawful unless doing so discriminates against a consumer's race or gender or violates antitrust or price-fixing laws.