A double auction is a process of buying and selling goods when potential buyers submit their bids and potential sellers simultaneously submit their ask prices to an auctioneer, and then an auctioneer chooses some price p that clears the market: all the sellers who asked less than p sell and all buyers who bid more than p buy at this price p.

Game theory approach to modelling double auctions

A double auction can be analyzed as a game. Players are buyers and sellers. They have some valuations of a good that is traded in an auction. Their strategies are bids for buyers and ask prices for sellers (that depend on the valuations of buyers and sellers). Payoffs depend on the price of the transaction and the valuation of a player.

From Wikipedia under the GNU Free Documentation License
Sat Aug 8 10:55:46 2009

Morgan double struck jpg
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double drum Wilson Drilling rig jpg
oilfield-auction.com
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Publisher BP Inc

From Yahoo Image Search: "Double auction"
Fri Aug 7 14:52:23 2009

Star and double wedding ring quilt auction win
flickr.com
Star and double wedding ring quilt auction win

(ritapizza)

ue, 16 Jun 2009 00:21:50 GM

ritapizza postou uma foto: Star and . double. wedding ring quilt . auction. win. Needs some repairs but it's really lovely and soft and beautifully hand quilted.

Dream Vacation on Yacht Auction for Amanda AWAKENINGS
amandaboxtel.wordpress.com
Dream Vacation on Yacht Auction for Amanda AWAKENINGS

aspenamanda

Mon, 29 Jun 2009 19:15:12 GM

Two Single People or One Couple; Full Board (choose between master cabin with ensuite toilet/shower; or . double. cabin with ensuite toilet/shower);​ Experienced Crew; All meals prepared by Gourmet Chef, Jane Bonass; Bar/alcoholic beverages ...

China's footprint - a double edged sword
henryjacksonsociety.org
China's footprint - a double edged sword

unknown

ue, 30 Jun 2009 00:00:00 GM

After a year of preparation, a much-heralded . auction. of licenses to develop Iraq's huge oil reserves began on Tuesday. However, as expected, the instability in Iraq deterred most oil and gas companies from bidding despite the lucrative ...

From Google Blog Search: "Double auction"
Mon Jul 6 18:29:22 2009

Market Insider: Thursday Look Ahead - CNBC
news.google.com
Market Insider: Thursday Look Ahead

CNBC

Bonds were steady afterthe Treasury's auction of $37 billion in five-year notes, but was hit by a selling wave after the Fed announcement. ...

While you were sleeping: Treasury sale, Bernanke Scoop.co.nz (press release)

US STOCKS-Wall St rises with Bernanke relief, consumer shares Interactive Investor



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Andre Derain Watercolor Leads William Jenack Auction - Antiques and Arts Weekly
news.google.com
Andre Derain Watercolor Leads William Jenack Auction

Antiques and Arts Weekly

A double -sided locket had two portraits painted on ivory; one side showed a man in a wig and Nineteenth Century dress, the other side was a portrait of a ...



and more »
Double whammy for dairy exporter - New Zealand Herald
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Double whammy for dairy exporter

New Zealand Herald

The average price of whole milk powder in Fonterra's monthly online auction yesterday was down 12 per cent compared with last month at US$1886 a tonne. ...



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From Google News Search: "Double auction"
Sat Jun 27 15:27:10 2009

(Possible underage) eBay buyer won't respond to emails for auction won?
Q. We just sold two concert tickets @ just under face value (for a concert in two months time) to an eBay user with 0 feedback. I wasn't too worried as this was our first auction too and we also had 0 feedback. We were sent her info and I also clicked on her userinfo after she won the auction to double check. It's been 4 days and there still is no answer to our PM's and emails. I am giving her the benefit of the doubt as it is Christmas time and all that... Anyway, just now, I rechecked her userinfo on eBay and all her contact info was gone! And here's the kicker: I googled her name and found out she's on Facebook and she's just finished the 9th grade (based on a school newsletter I also found with matching picture)... What do we do now...… [cont.]
Asked by CG48 - Thu Dec 25 11:44:30 2008 - - 2 Answers - 0 Comments

A. I would file a dispute. I don't think there is an age limit for people on ebay, though so I'm not sure the minor thing really matters.
Answered by AB - Thu Dec 25 11:49:33 2008

what is a fair starting auction price on ebay for the following Wii Bundle
Q. what is a fair starting auction price on ebay for the following Wii Bundle? I say between 350 and 450? Nintendo Wii Console with original box 2x Wii remote 2x Wii nunchuck 3x Gamecube Controller (one controller's "A" sticks every so often) 1x Gamecube Memory Card All the cables needed, The original Box and packaging. 1x Nyko wireless sensor bar 1x Wii Zapper (Nintendo brand) 1x LAN adapter Wii Games Super Mario Galaxy (maybe 1 little scratch) Resident Evil: The Umbrella Chronicles (maybe 1 little scratch) Resident Evil 4: Wii Edition (maybe 1 little scratch) Zelda: Twilight Princess (1 little scratch) Madden NFL 07 (maybe 1 little scratch) Wii Play (maybe 1 little scratch) Wii Sports (has scratches but is playable) Link's Crossbow… [cont.]
Asked by Cool Hand Bane - Tue Aug 5 21:46:48 2008 - - 3 Answers - 0 Comments

A. your best bet is to start it off at $.99 towards the end of the auction, if its not at a high enough price, you can delete it. You can also put a buy it now price which is easier but sometimes you set it too high and people will become uninterested. Hope it helped, heartotexas012
Answered by heartotexas012 - Tue Aug 5 22:06:18 2008

Fundraiser Dinner/Dance Event for Charity--help!?
Q. I am planning a Dinner/Dance event for Children's Charity and want to make sure that I am doing this right... I know I need: Location Tables/Chairs/Linens, etc. Food DJ/Entertainment Silent Auction Items Raffle Prizes Double Roll Raffle Tickets Flyers/Advertising Invitations (Postcard style) Do you have any ideas for fundraising things other than a 50/50 drawing, raffles, and silent auctions? Should I charge an admission fee covering the cost of the event itself? Help! Thank you.
Asked by anonymous - Tue Jul 17 13:45:33 2007 - - 3 Answers - 0 Comments

A. Well you have the right Idea. Most of the time if you have your event at a banquet hall or resturant that has a hall area they will provide all Tables, chairs, linens and such. Yes charge admission to cover your costs. But make it cheaper for a couple to come that 2 individuals (i.e. $15 per ticket or $25 per couple.) That way you are more inclined to get more people to come when they know its cheaper to bring a date or friend. Just make sure you get a cost estimate from the place you have the dinner at for "per person." If you can get enough single people to show up you can always have a bacholer/bacholette auction. Work with the DJ and have it so that in order to request a song it costs a dollar or two. When looking for prizes go… [cont.]
Answered by Robbo_op_98 - Tue Jul 17 14:07:03 2007

From Yahoo Answer Search: "Double auction"
Tue Jul 14 18:44:00 2009