Demand prediction system, demand prediction method, and program

In the present invention, higher-precision demand prediction is performed on the basis of past activity by consumers to obtain products or services. A demand prediction system: receives a plurality of user requests that indiviudally include conditions pertaining to a product or service; responds, in response to the user requests, with information pertaining to at least one product or service satisfying the conditions; and, on the basis of received user requests that include conditions satisfied by the product or service, calculates a demand prediction value for the product or service to be subjected to a prediction of demand.