Well I guess this is good news for us Collectors.   :-)    More
interesting is the announcement of changes at EBAY coming this week.   

 

Ira

 

http://news.yahoo.com/s/nm/20080128/tc_nm/ebay_consumers_dc_2

 

 

By Eric Auchard Mon Jan 28, 2:11 PM ET 

SAN FRANCISCO (Reuters) - Buyers save billions of dollars each year
bidding on eBay auctions, according to a new study that quantifies the
benefits online consumers enjoy over and above what is derived by
sellers, or eBay (EBAY.O) itself. 



The independent research by two statisticians from the University of
Maryland's Robert H. Smith School of Business found buyers saved $7
billion that they might have otherwise been ready to pay in a study of
eBay auction behavior in 2003.

Applying the same analysis to 2004 buyer data, consumers saved $8.4
billion, said Wolfgang Jank, one author of the study. A linear
projection of the research findings would mean consumers saved around
$19 billion during 2007, Jank said.

The study seeks to calculate what economists call "consumer surplus" --
the difference between the top price buyers were ready to pay and what
they actually ended up paying. E-commerce sites provide a treasure trove
of data that allows researchers to test out theories of consumer
behavior.

"Consumer surplus is usually very hard to measure," said study co-author
Galit Shmueli. "The problem is that it is hard to ascertain how much a
winner or a bidder or a user would have been willing to pay for a
certain item."

Jank and Shmueli are associate professors of decision and information
technologies at the University of Maryland. They collaborated with Ravi
Bapna, an associate professor at the Indian School of Business, who
generated data for the study.

The study highlights the delicate balance eBay must strike between the
interests of buyers and sellers on its site.

The flip side of the same data shows that sellers leave billions on the
table that they might otherwise have charged buyers by setting higher
prices.

While not the focus of their research, the benefit to sellers comes from
the market liquidity of selling items through eBay, the world's biggest
online auction service.

At an annual conference for its sellers this week in Washington D.C.,
eBay is poised to introduce changes designed to make its auctions more
appealing to sellers while also making it easier for consumers to find
items they wish to buy.

The research examined consumer purchase data from more than 4,500 U.S.
and European auctions in 2003. The $7 billion in projected savings
across eBay amounts to about 30 percent of the $24 billion of total
merchandise sold through eBay that year.

On eBay, winning bidders only pay the next increment above what the
second highest bidder was willing to pay. The difference between each
winning bid and what the buyer ends up paying amounts to consumer
surplus.

EBay makes publicly available much of the aggregate data about bidding
on its site. But it does not reveal data on the actual highest bids
people enter in the eBay bidding system.

Instead the data was drawn from a Web venture Bapna was running at the
time, called Cniper.com
<http://us.rd.yahoo.com/dailynews/nm/tc_nm/storytext/ebay_consumers_dc/2
6101828/SIG=10j1a0m94/*http:/Cniper.com> , which allows consumers to bid
automatically in the closing minutes of auctions to help them win
desired items at the lowest possible price. The statisticians adjusted
their data to account for eBay bidders who place bids manually rather
than via automated bids.

The group's study of the 2003 buyer data will be published in a paper
entitled, "Consumer Surplus in Online Auctions" in the Journal of
Information Systems Research.

"You just can't quantify this (consumer surplus) for traditional
retailers -- a store clerk would never get an accurate answer by asking
a customer: 'How much were you really willing to pay for this item?"'
Shmueli said.

"We just pay the prices the retailers demand," she said.

 


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