Abstract:The quantitative scarcity promotion can trigger a decision making situation along with the time pressure. In this kind of decisionmaking process, the information of quantitative scarcity can cause anticipatory emotions, and the value of quantity limited product can cause anticipated emotions. Anticipatory emotions are evoked by the prospect of a future event, and have positive and negative types such as happiness and anxiety. As expected emotions to be experienced in the future, anticipated emotions are evoked if certain events do or do not occur, and also have positive and negative types such as expected rejoice or expected regret. These two kinds of emotions probably have interactions with each other. On the one hand, negative affections of anticipatory and anticipated emotions usually play a dominant role near the promotion point; on the other hand, positive affections play a dominant role at the time of the information announcing.