[photo-3d] Re: eBay statistics

[RMac@xxxxxxx]

I did a little bit of research on this myself.

Over a three month period, a certain company auctioned off over 
117 identical hard disk drives, two or three per day at random 
times.  Ads were virtually identical.

Bids on each auction ranged from 6 to 25.
Prices varied by a factor of more than  2:1, but clustered around 
plus or minus 15% of the mean selling price.

There was no discernable correlation between number of bids 
and final price.

There was no discernable correlation between time of day or day 
of week and final price.

One surprising thing I discovered was that in comparing the 
bidders on the various auctions, there was little overlap between 
one auction and any other, other than for professional lowball 
bidders who bid on every auction and never came close to 
winning any.  Apparently your average bidder has a hard time 
finding, or does not bother to try to find, similar items for sale if 
he loses one auction.

I saved the data if anyone cares to examine it.


Robert MacLeay
The original and only RMac@xxxxxxx
"Accept no substitutes"
http://members.aol.com/rmac