| 摘要 |
A multiple entity purchase and sale transaction system enables shoppers and sellers to conduct business on internet using shopping groups. Group shopping allows sellers to sell goods and services to groups of shoppers at low prices. The multiple entity purchase and sale transaction system can be implemented as a group shopping web site. The group shopping web site allows unrelated shoppers to create, join, and check out a shopping group during open enrollment period. Sellers are allowed to provide bids to a shopping group during the open enrollment period of the shopping group. At the end of open enrollment period, a group shopping administrator selects an accepted seller. Finally the group shopping web site links shoppers in the shopping group and the accepted seller together so that shoppers can pay the accepted seller for goods and services and the accepted seller can provide goods and services to shoppers.
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