“…However, there is recent work that focuses on the ease of processing numerical (price) information and of calculating final prices in order to analyze customer reactions to different presentations of price changes (e.g., DelVecchio, Krishnan, & Smith, 2007;Estelami, 2003;Min Kim & Kramer, 2006). Although there is no evidence for such a rationale for the price stimuli used in the present study, future research could address the effects of price increases on future purchases by using more complex price stimuli such as multidimensional prices and prices with odd numbers (e.g., Estelami, 2003;Sheng, Bao, & Pan, 2007). In this context, more complex price information might also affect the principles of mental budgeting (i.e., of booking and posting particular expenses) as expense tracking becomes more difficult.…”