quibids’ supply rule
DESCRIPTION
QuiBids’ Supply Rule. Aktarer Zaman 12/2/11. Dataset. Products: 2,474 Users: 199,528 Auctions: 498,691 Bids: 3,850,461 Time Span: 4/21/2011 – 8/6/2011. Products Represented. Products Represented…. Auctions. Bids. Question that needs an answer:. - PowerPoint PPT PresentationTRANSCRIPT
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Aktarer Zaman12/2/11
QuiBids’ Supply Rule
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Dataset
QUIBIDS
Product(id, name,
value)
Auction(id, end time,
final price)
Winning Bid(id,
username, type of bid)
Bid Bid …
Auction …
Product …
Products: 2,474Users: 199,528Auctions: 498,691Bids: 3,850,461Time Span: 4/21/2011 – 8/6/2011
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Products Represented
1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 101 1050
100
200
300
400
500
600
700
800
900
Days Starting April 21, 2011
Num
ber
of
Pro
ducts
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Products Represented…
0
100
200
300
400
500
600
700
800
June 26 - August 5, 2011
Num
ber
of
Pro
ducts
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Auctions
0
1000
2000
3000
4000
5000
6000
June 26 - August 5, 2011
Num
ber
of
Aucti
ons
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Bids
0
100000
200000
300000
400000
500000
600000
700000
800000
900000
1000000
June 26 - August 5, 2011
Num
ber
of
Bid
s
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Question that needs an answer:
Why did QuiBids change its inventory of products?
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Unique Visitors to QuiBids
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20 Days Before and After July 16, 2011
Before
• Products: 1,442
• Auctions: 88,516
• Users Captured: 51,632
After
• Products: 1,058
• Auctions: 88,194
• Users Captured: 48,466
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Forming Communities
Initially
1. Products = Community
2. User community based on interest
Join communities
• Similar users in any to community
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Visualizing Communities Before Change
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Visualizing Communities After Change
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So what’s QuiBids’ supply rule?
• Constant number of auction
• Increase representation of product based on user interest
• Maintain equilibrium with profitability
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Conference Paper
• Penny auctions
• General information about QuiBids
• Strategies behind the QuiBids business
• The habits of users
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Questions?