| 摘要 |
A system and methods to mutually satisfy a consumer with a discount and a vendor with a minimum number of sales by establishing a tipping point associated with an offer for a good or service. If the tipping point is met, the sale of the good or service is executed and the consumer is charged and receives an indication of the discounted sale, such as a certificate. If the tipping point is not met, the discount offer is abandoned and the consumer is not charged. Once the tipping point is established, the vendor receives a payment, even before the consumer uses the certificate.
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