Websites Vary Prices, Deals Based on Users' Information
online.wsj.com
online.wsj.com
"[Charging different people different prices for the same product] pisses the heck off of people. People want to feel they're paying a fair price. They don't want to think they're paying extra...it seems like customers would rather pay $100 when everyone else is paying $100 than pay $79 if they know there's someone out there who got it for $78."
[1] http://www.joelonsoftware.com/articles/CamelsandRubberDuckie...
Abstract:
Price discrimination, setting the price of a given product
for each customer individually according to his valuation
for it, can benefit from extensive information collected
online on the customers and thus contribute to the
profitability of e-commerce services. Another way to
discriminate among customers with different willingness to
pay is to steer them towards different sets of products
when they search within a product category (i.e., search
discrimination). Our main contribution in this paper is to
empirically demonstrate the existence of signs of both
price and search discrimination on the Internet, and to
uncover the information vectors used to facilitate them.
Supported by our findings, we outline the design of a
large-scale, distributed watchdog system that allows users
to detect discriminatory practices.
The paper only has preliminary results (hotnets targets fairly early ideas), but so far has only detected discrimination based on location and search terms.If there is a very price sensitive shopping behavior this will lead to a strong increase of data noise by people trying to play the algorithms, e.g. fake accounts, deletion of accounts, groomed accounts towards specific deals, etc.
I have had customers get annoyed when they find out we are charging more on Amazon (simply passing on the amazon fee). As a customer you will likely find on the amazon marketplace that an seller that also sells from a website will be doing a better price on the website. I guess in this case though the extra price is buying you some protection as the marketplace is very customer friendly.
At most, put real differences in shipping costs into the "shipping" portion of the final total. (Something readily auditable.)
Anything else should get a long, hard look.
(I'd consider it akin the "redlining" in the real estate marketplace. Geographically based, but having an outsized impact upon specific demographic/cultural/racial groups.)
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[1] Certainly, in the U.S., retailers have loved to embrace precisely this argument, from the perspective of avoiding state sales taxes.