Abstract: A system and method for generating real-time promotions to a visitor of an electronic commerce (e-commerce) World Wide website to increase the likelihood of purchase on the website by the visitor. The system and method receive and store clickstream data provided by the visitor, and calculate the probability that the visitor will leave the website or will make a purchase on the website based upon this clickstream data. The system and method then utilize the calculated probabilities, as well as the frequency of visits to the website by the visitor, and the time of the visit to the website, to decide whether or not real-time promotions should be generated on the website. If it is decided that promotions should be generated, then the system and method automatically calculate what promotions to send, when to send them, and how to send them.