Systems and method for incorporating bidder budgets in multi-item auctions

• US 8,271,345 B1
• Filed: 06/08/2010
• Issued: 09/18/2012
• Est. Priority Date: 12/22/2008
• Status: Active Grant

• Current Assignee: Auctionomics, Inc.
• Original Assignee: Auctionomics, Inc.
• Inventors: Milgrom, Paul R., Goldband, Steve
• Primary Examiner(s): Allen, William
• Assistant Examiner(s): Palavecino, Kathleen G
• Application Number:
  US12/796,552
• Time in Patent Office: 833 Days
• Field of Search: 705 261- 272
• US Class Current: 705/26.1
• CPC Class Codes: G06Q 30/08 Auctions

Abstract

Systems and methods for conducting multi-item auctions for complex goods that allows bidders to specify budget constraints is disclosed. The system includes a server, a network, a plurality of trader systems and a data store unit. The system allows bidders to work effectively with limited budgets. The server includes an allocation unit performs a sealed-bid auction that enables bidding without the risk of going over budget, and thus, the present invention encourages bidders to place more and higher bids. Sellers will therefore receive higher prices and goods are more likely to be efficiently assigned.

Claims

1. A computer-implemented method for performing a sealed-bid auction of lots on one or more computing devices, the method comprising:

receiving, on the one or more computing devices, a first bid group from a first bidder, the first bid group including a first plurality of bids, and receiving a first budget constraint specifying a total money amount the first bidder can spend for the group in the sealed-bid auction, wherein a sum of the first plurality of bids exceeds the first budget constraint;

receiving, on the one or more computing devices, a second bid group from a second bidder, the second bid group including a second plurality of bids for the sealed-bid auction; and

determining, on the one or more computing devices, using the sealed-bid auction of lots, an allocation of lots that awards bids to the first bidder and the second bidder, wherein the allocation maximizes a price for awarded bids, subject to at least the first budget constraint.

2. The computer-implemented method of claim 1, wherein the second bid group includes a second budget constraint specifying a total money amount the second bidder can spend, and wherein determining the allocation is subject to at least the first and the second budget constraints.

3. The computer-implemented method of claim 1, wherein each bid in the first plurality of bids identifies a number of lots of some type and a money value per lot.

4. The computer-implemented method of claim 3 wherein the lot is one from the group of a right, a good, a service, a good and a service, a product, a collection of goods, a collection of services and a collection of goods and a collection of services.

5. The computer-implemented method of claim 1, wherein each bid in the second plurality of bids identifies a number of lots of some type and a money value per lot.

6. The computer-implemented method of claim 1 further comprising:

sending a first message to the first bidder including the allocation; and

sending a second message to the second bidder including the allocation.

7. The computer-implemented method of claim 1 wherein the determining the allocation of lots includes modifying a constraint with respect to a single auction to reduce the number of lots a bidder can win.

8. The computer-implemented method of claim 7 further comprising sending a message to the first bidder indicating that a number constraint was added to one of the first plurality of bids in order to honor the first budget constraint.

9. The computer-implemented method of claim 1 wherein the determining the allocation of lots includes:

determining an initial candidate price vector;

determining a first maximum net value, subject to a budget constraint and a market clearing constraint; and

determining a second maximum net value minus a net cost of goods at the candidate prices subject to the budget constraint in the market clearing constraint.

10. The computer-implemented method of claim 9 further comprising:

determining whether the first maximum value minus the second maximum value is small;

and if the first maximum value minus the second maximum value is small, outputting the lot prices.

11. The computer-implemented method of claim 9 further comprising:

determining whether the first maximum value minus the second maximum value is small;

if the first maximum value minus the second maximum value is not small, adjust the prices for goods and repeat the steps of determining the initial candidate price vector, determining the first maximum that value and determining the second maximum net value for the adjusted prices.

12. A computer program product comprising a non-transitory computer usable medium including a computer readable program, wherein the computer readable program when executed on a computer causes the computer to:

receive a first bid group from a first bidder, the first bid group including a first plurality of bids, and receiving a first budget constraint specifying a total money amount the first bidder can spend for the group, wherein a sum of the first plurality of bids exceeds the first budget constraint;

receive a second bid group from a second bidder, the second bid group including a second plurality of bids; and

determine using a sealed bid auction of lots, an allocation of lots that awards bids to the first bidder and the second bidder, wherein the allocation maximizes a price for awarded bids, subject to at least the first budget constraint.

13. The computer program product of claim 12, wherein the second bid group includes a second budget constraint specifying a total money amount the second bidder can spend, and wherein the allocation is subject to at least the first and the second budget constraints.

14. The computer program product of claim 12, wherein the computer readable program when executed on the computer causes the computer to also:

send a first message to the first bidder including the allocation; and

send a second message to the second bidder including the allocation.

15. The computer program product of claim 12, wherein the determining the allocation of lots includes modifying a constraint with respect to a single auction to reduce the number of lots a bidder can win.

16. The computer program product of claim 12, wherein the computer readable program when executed on the computer causes the computer to also:

determine an initial candidate price vector;

determine a first maximum net value, subject to a budget constraint and a market clearing constraint; and

determine a second maximum net value minus a net cost of goods at the candidate prices subject to the budget constraint in the market clearing constraint.

17. A system comprising one or more computing devices for performing an auction of lots in a sealed-bid auction, the system comprising:

an interface module in at least one computing device for receiving a first bid group from a first bidder, the first bid group including a first plurality of bids, receiving a first budget constraint specifying a total money amount the first bidder can spend for the group in the sealed bid auction, wherein a sum of the first plurality of bids exceeds the first budget constraint, the interface module also receiving a second bid group from a second bidder, the second bid group including a second plurality of bids in the sealed bid auction, the interface module coupled to receive the first bid group and the second bid group;

an allocation system in at least one computing device for determining an allocation of lots that awards bids to the first bidder and the second bidder and that maximizes a price for awarded bids, subject to at least the first budget constraint;

the allocation system coupled to receive the first bid group and the second bid group from the interface module; and

an auction module in at least one computing device for determining using the sealed bid auction of lots and the allocation of lots that awards bids to the first bidder and the second bidder, the auction module coupled to receive the first bid group and the second bid group from the interface module and coupled to receive the allocation from the allocation system and coupled to provide the allocation to the first bidder and the second bidder.

18. The system of claim 17 further comprising an exchange module for operating an exchange to receive bids and send notification messages, the exchange module coupled for communication with the interface module and the auction system.

19. The system of claim 17 wherein the allocation system comprises:

a sellers bid queue for storing bids to sell, the sellers bid queue coupled to the interface module to receive bid groups, and coupled to provide stored bids;

a buyers bid queue for storing bids to buy, the buyers bid queue coupled to the interface module to receive bid groups, and coupled to provide stored bids;

a constraints engine for processing the first bid group and the second bid group from the sellers bid queue and buyers bid queue to determine rules and constraints to determine the allocation of lots and market-clearing prices, the constraints engine coupled to the sellers bid queue and the buyers bid queue; and

a bid processor for processing the rules and constraints, the bids from the sellers bid queue and the buyers bid queue to generate a list of winning bids, the bid processor coupled to the sellers bid queue, the buyers bid queue and the constraints engine.