Products or services demand analytics systems are provided. The systems may include a processor configured to determine whether to make an offer from a buyer to purchase a product or service at a buyer-determined price available to a seller of the product or service, based on a demand analytics preference of the seller for the product or service. Moreover, the processor may be configured to adjust whether the offer is made available to the seller and/or how the offer is communicated to the seller in response to an adjustment by the seller of the demand analytics preference for the product or service. Related methods and electronic exchanges are also described.
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